Whether the third beatitude, "Blessed are they that mourn," etc. corresponds to the gift of knowledge?

Objection 1. It would seem that the third beatitude, "Blessed are they that mourn," does not correspond to the gift of knowledge. For, even as evil is the cause of sorrow and grief, so is good the cause of joy. Now knowledge brings good to light rather than evil, since the latter is known through evil: for "the straight line rules both itself and the crooked line" (De Anima i, 5). Therefore the aforesaid beatitude does not suitably correspond to the gift of knowledge.

Objection 2. Further, consideration of truth is an act of knowledge. Now there is no sorrow in the consideration of truth; rather is there joy, since it is written (Wisdom 8:16): "Her conversation hath no bitterness, nor her company any tediousness, but joy and gladness." Therefore the aforesaid beatitude does not suitably correspond with the gift of knowledge.

Objection 3. Further, the gift of knowledge consists in speculation, before operation. Now, in so far as it consists in speculation, sorrow does not correspond to it, since "the speculative intellect is not concerned about things to be sought or avoided" (De Anima iii, 9). Therefore the aforesaid beatitude is not suitably reckoned to correspond with the gift of knowledge.

On the contrary, Augustine says (De Serm. Dom. in Monte iv): "Knowledge befits the mourner, who has discovered that he has been mastered by the evil which he coveted as though it were good."

I answer that, Right judgment about creatures belongs properly to knowledge. Now it is through creatures that man's aversion from God is occasioned, according to Wisdom 14:11: "Creatures . . . are turned to an abomination . . . and a snare to the feet of the unwise," of those, namely, who do not judge aright about creatures, since they deem the perfect good to consist in them. Hence they sin by placing their last end in them, and lose the true good. It is by forming a right judgment of creatures that man becomes aware of the loss (of which they may be the occasion), which judgment he exercises through the gift of knowledge.

Hence the beatitude of sorrow is said to correspond to the gift of knowledge.

Reply to Objection 1. Created goods do not cause spiritual joy, except in so far as they are referred to the Divine good, which is the proper cause of spiritual joy. Hence spiritual peace and the resulting joy correspond directly to the gift of wisdom: but to the gift of knowledge there corresponds, in the first place, sorrow for past errors, and, in consequence, consolation, since, by his right judgment, man directs creatures to the Divine good. For this reason sorrow is set forth in this beatitude, as the merit, and the resulting consolation, as the reward; which is begun in this life, and is perfected in the life to come.

Reply to Objection 2. Man rejoices in the very consideration of truth; yet he may sometimes grieve for the thing, the truth of which he considers: it is thus that sorrow is ascribed to knowledge.

Reply to Objection 3. No beatitude corresponds to knowledge, in so far as it consists in speculation, because man's beatitude consists, not in considering creatures, but in contemplating God. But man's beatitude does consist somewhat in the right use of creatures, and in well-ordered love of them: and this I say with regard to the beatitude of a wayfarer. Hence beatitude relating to contemplation is not ascribed to knowledge, but to understanding and wisdom, which are about Divine things.

The Summa Theologiæ of St. Thomas AquinasSecond and Revised Edition, 1920Literally translated by Fathers of the English Dominican ProvinceOnline Edition Copyright © 2017 by Kevin Knight Nihil Obstat. F. Innocentius Apap, O.P., S.T.M., Censor. Theol.Imprimatur. Edus. Canonicus Surmont, Vicarius Generalis. Westmonasterii.APPROBATIO ORDINISNihil Obstat. F. Raphael Moss, O.P., S.T.L. and F. Leo Moore, O.P., S.T.L.Imprimatur. F. Beda Jarrett, O.P., S.T.L., A.M., Prior Provincialis AngliæMARIÆ IMMACULATÆ - SEDI SAPIENTIÆ

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Whether unbelief is a sin?

Objection 1. It would seem that unbelief is not a sin. For every sin is contrary to nature, as Damascene proves (De Fide Orth. ii, 4). Now unbelief seems not to be contrary to nature; for Augustine says (De Praedest. Sanct. v) that "to be capable to having faith, just as to be capable of having charity, is natural to all men; whereas to have faith, even as to have charity, belongs to the grace of the faithful." Therefore not to have faith, which is to be an unbeliever, is not a sin.

Objection 2. Further, no one sins that which he cannot avoid, since every sin is voluntary. Now it is not in a man's power to avoid unbelief, for he cannot avoid it unless he have faith, because the Apostle says (Romans 10:14): "How shall they believe in Him, of Whom they have not heard? And how shall they hear without a preacher?" Therefore unbelief does not seem to be a sin.

Objection 3. Further, as stated above (I-II:84:4), there are seven capital sins, to which all sins are reduced. But unbelief does not seem to be comprised under any of them. Therefore unbelief is not a sin.

On the contrary, Vice is opposed to virtue. Now faith is a virtue, and unbelief is opposed to it. Therefore unbelief is a sin.

I answer that, Unbelief may be taken in two ways: first, by way of pure negation, so that a man be called an unbeliever, merely because he has not the faith. Secondly, unbelief may be taken by way of opposition to the faith; in which sense a man refuses to hear the faith, or despises it, according to Isaiah 53:1: "Who hath believed our report?" It is this that completes the notion of unbelief, and it is in this sense that unbelief is a sin.

If, however, we take it by way of pure negation, as we find it in those who have heard nothing about the faith, it bears the character, not of sin, but of punishment, because such like ignorance of Divine things is a result of the sin of our first parent. If such like unbelievers are damned, it is on account of other sins, which cannot be taken away without faith, but not on account of their sin of unbelief. Hence Our Lord said (John 15:22) "If I had not come, and spoken to them, they would not have sin"; which Augustine expounds (Tract. lxxxix in Joan.) as "referring to the sin whereby they believed not in Christ."

Reply to Objection 1. To have the faith is not part of human nature, but it is part of human nature that man's mind should not thwart his inner instinct, and the outward preaching of the truth. Hence, in this way, unbelief is contrary to nature.

Reply to Objection 2. This argument takes unbelief as denoting a pure negation.

Reply to Objection 3. Unbelief, in so far as it is a sin, arises from pride, through which man is unwilling to subject his intellect to the rules of faith, and to the sound interpretation of the Fathers. Hence Gregory says (Moral. xxxi, 45) that "presumptuous innovations arise from vainglory."

It might also be replied that just as the theological virtues are not reduced to the cardinal virtues, but precede them, so too, the vices opposed to the theological virtues are not reduced to the capital vices.


Whether unbelief is in the intellect as its subject?

Objection 1. It would seem that unbelief is not in the intellect as its subject. For every sin is in the will, according to Augustine (De Duabus Anim. x, xi). Now unbelief is a sin, as stated above (Article 1). Therefore unbelief resides in the will and not in the intellect.

Objection 2. Further, unbelief is sinful through contempt of the preaching of the faith. But contempt pertains to the will. Therefore unbelief is in the will.

Objection 3. Further, a gloss [Augustine, Enchiridion lx.] on 2 Corinthians 11:14 "Satan . . . transformeth himself into an angel of light," says that if "a wicked angel pretend to be a good angel, and be taken for a good angel, it is not a dangerous or an unhealthy error, if he does or says what is becoming to a good angel." This seems to be because of the rectitude of the will of the man who adheres to the angel, since his intention is to adhere to a good angel. Therefore the sin of unbelief seems to consist entirely in a perverse will: and, consequently, it does not reside in the intellect.

On the contrary, Things which are contrary to one another are in the same subject. Now faith, to which unbelief is opposed, resides in the intellect. Therefore unbelief also is in the intellect.

I answer that, As stated above (I-II:74:1; I-II:74:2), sin is said to be in the power which is the principle of the sinful act. Now a sinful act may have two principles: one is its first and universal principle, which commands all acts of sin; and this is the will, because every sin is voluntary. The other principle of the sinful act is the proper and proximate principle which elicits the sinful act: thus the concupiscible is the principle of gluttony and lust, wherefore these sins are said to be in the concupiscible. Now dissent, which is the act proper to unbelief, is an act of the intellect, moved, however, by the will, just as assent is.

Therefore unbelief, like faith, is in the intellect as its proximate subject. But it is in the will as its first moving principle, in which way every sin is said to be in the will.

Hence the Reply to the First Objection is clear.

Reply to Objection 2. The will's contempt causes the intellect's dissent, which completes the notion of unbelief. Hence the cause of unbelief is in the will, while unbelief itself is in the intellect.

Reply to Objection 3. He that believes a wicked angel to be a good one, does not dissent from a matter of faith, because "his bodily senses are deceived, while his mind does not depart from a true and right judgment" as the gloss observes [Augustine, Enchiridion lx]. But, according to the same authority, to adhere to Satan when he begins to invite one to his abode, i.e. wickedness and error, is not without sin.


Whether unbelief is the greatest of sin?

Objection 1. It would seem that unbelief is not the greatest of sins. For Augustine says (De Bapt. contra Donat. iv, 20): "I should hesitate to decide whether a very wicked Catholic ought to be preferred to a heretic, in whose life one finds nothing reprehensible beyond the fact that he is a heretic." But a heretic is an unbeliever. Therefore we ought not to say absolutely that unbelief is the greatest of sins.

Objection 2. Further, that which diminishes or excuses a sin is not, seemingly, the greatest of sins. Now unbelief excuses or diminishes sin: for the Apostle says (1 Timothy 1:12-13): "I . . . before was a blasphemer, and a persecutor and contumelious; but I obtained . . . mercy . . . because I did it ignorantly in unbelief." Therefore unbelief is not the greatest of sins.

Objection 3. Further, the greater sin deserves the greater punishment, according to Deuteronomy 25:2: "According to the measure of the sin shall the measure also of the stripes be." Now a greater punishment is due to believers than to unbelievers, according to Hebrews 10:29: "How much more, do you think, he deserveth worse punishments, who hath trodden under foot the Son of God, and hath esteemed the blood of the testament unclean, by which he was sanctified?" Therefore unbelief is not the greatest of sins.

On the contrary, Augustine, commenting on John 15:22, "If I had not come, and spoken to them, they would not have sin," says (Tract. lxxxix in Joan.): "Under the general name, He refers to a singularly great sin. For this," viz. infidelity, "is the sin to which all others may be traced." Therefore unbelief is the greatest of sins.

I answer that, Every sin consists formally in aversion from God, as stated above (I-II:71:6; I-II:73:3). Hence the more a sin severs man from God, the graver it is. Now man is more than ever separated from God by unbelief, because he has not even true knowledge of God: and by false knowledge of God, man does not approach Him, but is severed from Him.

Nor is it possible for one who has a false opinion of God, to know Him in any way at all, because the object of his opinion is not God. Therefore it is clear that the sin of unbelief is greater than any sin that occurs in the perversion of morals. This does not apply to the sins that are opposed to the theological virtues, as we shall stated further on (II-II:20:3; II-II:34:2 ad 2; II-II:39:2 ad 3).

Reply to Objection 1. Nothing hinders a sin that is more grave in its genus from being less grave in respect of some circumstances. Hence Augustine hesitated to decide between a bad Catholic, and a heretic not sinning otherwise, because although the heretic's sin is more grave generically, it can be lessened by a circumstance, and conversely the sin of the Catholic can, by some circumstance, be aggravated.

Reply to Objection 2. Unbelief includes both ignorance, as an accessory thereto, and resistance to matters of faith, and in the latter respect it is a most grave sin. On respect, however, of this ignorance, it has a certain reason for excuse, especially when a man sins not from malice, as was the case with the Apostle.

Reply to Objection 3. An unbeliever is more severely punished for his sin of unbelief than another sinner is for any sin whatever, if we consider the kind of sin. But in the case of another sin, e.g. adultery, committed by a believer, and by an unbeliever, the believer, other things being equal, sins more gravely than the unbeliever, both on account of his knowledge of the truth through faith, and on account of the sacraments of faith with which he has been satiated, and which he insults by committing sin.


Whether every act of an unbeliever is a sin?

Objection 1. It would seem that each act of an unbeliever is a sin. Because a gloss on Romans 14:23, "All that is not of faith is sin," says: "The whole life of unbelievers is a sin." Now the life of unbelievers consists of their actions. Therefore every action of an unbeliever is a sin.

Objection 2. Further, faith directs the intention. Now there can be no good save what comes from a right intention. Therefore, among unbelievers, no action can be good.

Objection 3. Further, when that which precedes is corrupted, that which follows is corrupted also. Now an act of faith precedes the acts of all the virtues. Therefore, since there is no act of faith in unbelievers, they can do no good work, but sin in every action of theirs.

On the contrary, It is said of Cornelius, while yet an unbeliever (Acts 10:4-31), that his alms were acceptable to God. Therefore not every action of an unbeliever is a sin, but some of his actions are good.

I answer that, As stated above (I-II:85:2; I-II:85:4) mortal sin takes away sanctifying grace, but does not wholly corrupt the good of nature. Since therefore, unbelief is a mortal sin, unbelievers are without grace indeed, yet some good of nature remains in them. Consequently it is evident that unbelievers cannot do those good works which proceed from grace, viz. meritorious works; yet they can, to a certain extent, do those good works for which the good of nature suffices.

Hence it does not follow that they sin in everything they do; but whenever they do anything out of their unbelief, then they sin. For even as one who has the faith, can commit an actual sin, venial or even mortal, which he does not refer to the end of faith, so too, an unbeliever can do a good deed in a matter which he does not refer to the end of his unbelief.

Reply to Objection 1. The words quoted must be taken to mean either that the life of unbelievers cannot be sinless, since without faith no sin is taken away, or that whatever they do out of unbelief, is a sin. Hence the same authority adds: "Because every one that lives or acts according to his unbelief, sins grievously."

Reply to Objection 2. Faith directs the intention with regard to the supernatural last end: but even the light of natural reason can direct the intention in respect of a connatural good.

Reply to Objection 3. Unbelief does not so wholly destroy natural reason in unbelievers, but that some knowledge of the truth remains in them, whereby they are able to do deeds that are generically good. With regard, however, to Cornelius, it is to be observed that he was not an unbeliever, else his works would not have been acceptable to God, whom none can please without faith. Now he had implicit faith, as the truth of the Gospel was not yet made manifest: hence Peter was sent to him to give him fuller instruction in the faith.


Whether there are several species of unbelief?

Objection 1. It would seem that there are not several species of unbelief. For, since faith and unbelief are contrary to one another, they must be about the same thing. Now the formal object of faith is the First Truth, whence it derives its unity, although its matter contains many points of belief. Therefore the object of unbelief also is the First Truth; while the things which an unbeliever disbelieves are the matter of his unbelief. Now the specific difference depends not on material but on formal principles. Therefore there are not several species of unbelief, according to the various points which the unbeliever disbelieves.

Objection 2. Further, it is possible to stray from the truth of faith in an infinite number of ways. If therefore the various species of unbelief correspond to the number of various errors, it would seem to follow that there is an infinite number of species of unbelief, and consequently, that we ought not to make these species the object of our consideration.

Objection 3. Further, the same thing does not belong to different species. Now a man may be an unbeliever through erring about different points of truth. Therefore diversity of errors does not make a diversity of species of unbelief: and so there are not several species of unbelief.

On the contrary, Several species of vice are opposed to each virtue, because "good happens in one way, but evil in many ways," according to Dionysius (Div. Nom. iv) and the Philosopher (Ethic. ii, 6). Now faith is a virtue. Therefore several species of vice are opposed to it.

I answer that, As stated above (I-II:55:4; I-II:64:1), every virtue consists in following some rule of human knowledge or operation. Now conformity to a rule happens one way in one matter, whereas a breach of the rule happens in many ways, so that many vices are opposed to one virtue. The diversity of the vices that are opposed to each virtue may be considered in two ways, first, with regard to their different relations to the virtue: and in this way there are determinate species of vices contrary to a virtue: thus to a moral virtue one vice is opposed by exceeding the virtue, and another, by falling short of the virtue. Secondly, the diversity of vices opposed to one virtue may be considered in respect of the corruption of the various conditions required for that virtue. On this way an infinite number of vices are opposed to one virtue, e.g. temperance or fortitude, according to the infinite number of ways in which the various circumstances of a virtue may be corrupted, so that the rectitude of virtue is forsaken. For this reason the Pythagoreans held evil to be infinite.

Accordingly we must say that if unbelief be considered in comparison to faith, there are several species of unbelief, determinate in number. For, since the sin of unbelief consists in resisting the faith, this may happen in two ways: either the faith is resisted before it has been accepted, and such is the unbelief of pagans or heathens; or the Christian faith is resisted after it has been accepted, and this either in the figure, and such is the unbelief of the Jews, or in the very manifestation of truth, and such is the unbelief of heretics. Hence we may, in a general way, reckon these three as species of unbelief.

If, however, the species of unbelief be distinguished according to the various errors that occur in matters of faith, there are not determinate species of unbelief: for errors can be multiplied indefinitely, as Augustine observes (De Haeresibus).

Reply to Objection 1. The formal aspect of a sin can be considered in two ways. First, according to the intention of the sinner, in which case the thing to which the sinner turns is the formal object of his sin, and determines the various species of that sin. Secondly, it may be considered as an evil, and in this case the good which is forsaken is the formal object of the sin; which however does not derive its species from this point of view, in fact it is a privation. We must therefore reply that the object of unbelief is the First Truth considered as that which unbelief forsakes, but its formal aspect, considered as that to which unbelief turns, is the false opinion that it follows: and it is from this point of view that unbelief derives its various species. Hence, even as charity is one, because it adheres to the Sovereign Good, while there are various species of vice opposed to charity, which turn away from the Sovereign Good by turning to various temporal goods, and also in respect of various inordinate relations to God, so too, faith is one virtue through adhering to the one First Truth, yet there are many species of unbelief, because unbelievers follow many false opinions.

Reply to Objection 2. This argument considers the various species of unbelief according to various points in which errors occur.

Reply to Objection 3. Since faith is one because it believes in many things in relation to one, so may unbelief, although it errs in many things, be one in so far as all those things are related to one. Yet nothing hinders one man from erring in various species of unbelief, even as one man may be subject to various vices, and to various bodily diseases.


Whether the unbelief of pagans or heathens is graver than other kinds?

Objection 1. It would seem that the unbelief of heathens or pagans is graver than other kinds. For just as bodily disease is graver according as it endangers the health of a more important member of the body, so does sin appear to be graver, according as it is opposed to that which holds a more important place in virtue. Now that which is most important in faith, is belief in the unity of God, from which the heathens deviate by believing in many gods. Therefore their unbelief is the gravest of all.

Objection 2. Further, among heresies, the more detestable are those which contradict the truth of faith in more numerous and more important points: thus, the heresy of Arius, who severed the Godhead, was more detestable than that of Nestorius who severed the humanity of Christ from the Person of God the Son. Now the heathens deny the faith in more numerous and more important points than Jews and heretics; since they do not accept the faith at all. Therefore their unbelief is the gravest.

Objection 3. Further, every good diminishes evil. Now there is some good in the Jews, since they believe in the Old Testament as being from God, and there is some good in heretics, since they venerate the New Testament. Therefore they sin less grievously than heathens, who receive neither Testament.

On the contrary, It is written (2 Peter 2:21): "It had been better for them not to have known the way of justice, than after they have known it, to turn back." Now the heathens have not known the way of justice, whereas heretics and Jews have abandoned it after knowing it in some way. Therefore theirs is the graver sin.

I answer that, As stated above (Article 5), two things may be considered in unbelief. One of these is its relation to faith: and from this point of view, he who resists the faith after accepting it, sins more grievously against faith, than he who resists it without having accepted it, even as he who fails to fulfil what he has promised, sins more grievously than if he had never promised it. On this way the unbelief of heretics, who confess their belief in the Gospel, and resist that faith by corrupting it, is a more grievous sin than that of the Jews, who have never accepted the Gospel faith. Since, however, they accepted the figure of that faith in the Old Law, which they corrupt by their false interpretations, their unbelief is a more grievous sin than that of the heathens, because the latter have not accepted the Gospel faith in any way at all.

The second thing to be considered in unbelief is the corruption of matters of faith. On this respect, since heathens err on more points than Jews, and these in more points than heretics, the unbelief of heathens is more grievous than the unbelief of the Jews, and that of the Jews than that of the heretics, except in such cases as that of the Manichees, who, in matters of faith, err even more than heathens do.

Of these two gravities the first surpasses the second from the point of view of guilt; since, as stated above (Article 1) unbelief has the character of guilt, from its resisting faith rather than from the mere absence of faith, for the latter as was stated (Article 1) seems rather to bear the character of punishment. Hence, speaking absolutely, the unbelief of heretics is the worst.

This suffices for the Replies to the Objections.


Whether one ought to dispute with unbelievers in public?

Objection 1. It would seem that one ought not to dispute with unbelievers in public. For the Apostle says (2 Timothy 2:14): "Contend not in words, for it is to no profit, but to the subverting of the hearers." But it is impossible to dispute with unbelievers publicly without contending in words. Therefore one ought not to dispute publicly with unbelievers.

Objection 2. Further, the law of Martianus Augustus confirmed by the canons [De Sum. Trin. Cod. lib. i, leg. Nemo] expresses itself thus: "It is an insult to the judgment of the most religious synod, if anyone ventures to debate or dispute in public about matters which have once been judged and disposed of." Now all matters of faith have been decided by the holy councils. Therefore it is an insult to the councils, and consequently a grave sin to presume to dispute in public about matters of faith.

Objection 3. Further, disputations are conducted by means of arguments. But an argument is a reason in settlement of a dubious matter: whereas things that are of faith, being most certain, ought not to be a matter of doubt. Therefore one ought not to dispute in public about matters of faith.

On the contrary, It is written (Acts 9:22-29) that "Saul increased much more in strength, and confounded the Jews," and that "he spoke . . . to the gentiles and disputed with the Greeks."

I answer that, In disputing about the faith, two things must be observed: one on the part of the disputant; the other on the part of his hearers. On the part of the disputant, we must consider his intention. For if he were to dispute as though he had doubts about the faith, and did not hold the truth of faith for certain, and as though he intended to probe it with arguments, without doubt he would sin, as being doubtful of the faith and an unbeliever. On the other hand, it is praiseworthy to dispute about the faith in order to confute errors, or for practice.

On the part of the hearers we must consider whether those who hear the disputation are instructed and firm in the faith, or simple and wavering. As to those who are well instructed and firm in the faith, there can be no danger in disputing about the faith in their presence. But as to simple-minded people, we must make a distinction; because either they are provoked and molested by unbelievers, for instance, Jews or heretics, or pagans who strive to corrupt the faith in them, or else they are not subject to provocation in this matter, as in those countries where there are not unbelievers. On the first case it is necessary to dispute in public about the faith, provided there be those who are equal and adapted to the task of confuting errors; since in this way simple people are strengthened in the faith, and unbelievers are deprived of the opportunity to deceive, while if those who ought to withstand the perverters of the truth of faith were silent, this would tend to strengthen error. Hence Gregory says (Pastor. ii, 4): "Even as a thoughtless speech gives rise to error, so does an indiscreet silence leave those in error who might have been instructed." On the other hand, in the second case it is dangerous to dispute in public about the faith, in the presence of simple people, whose faith for this very reason is more firm, that they have never heard anything differing from what they believe. Hence it is not expedient for them to hear what unbelievers have to say against the faith.

Reply to Objection 1. The Apostle does not entirely forbid disputations, but such as are inordinate, and consist of contentious words rather than of sound speeches.

Reply to Objection 2. That law forbade those public disputations about the faith, which arise from doubting the faith, but not those which are for the safeguarding thereof.

Reply to Objection 3. One ought to dispute about matters of faith, not as though one doubted about them, but in order to make the truth known, and to confute errors. For, in order to confirm the faith, it is necessary sometimes to dispute with unbelievers, sometimes by defending the faith, according to 1 Peter 3:15: "Being ready always to satisfy everyone that asketh you a reason of that hope and faith which is in you [Vulgate: 'Of that hope which is in you' St. Thomas' reading is apparently taken from Bede]." Sometimes again, it is necessary, in order to convince those who are in error, according to Titus 1:9: "That he may be able to exhort in sound doctrine and to convince the gainsayers."


Whether unbelievers ought to be compelled to the faith?

Objection 1. It would seem that unbelievers ought by no means to be compelled to the faith. For it is written (Matthew 13:28) that the servants of the householder, in whose field cockle had been sown, asked him: "Wilt thou that we go and gather it up?" and that he answered: "No, lest perhaps gathering up the cockle, you root up the wheat also together with it": on which passage Chrysostom says (Hom. xlvi in Matth.): "Our Lord says this so as to forbid the slaying of men. For it is not right to slay heretics, because if you do you will necessarily slay many innocent persons." Therefore it seems that for the same reason unbelievers ought not to be compelled to the faith.

Objection 2. Further, we read in the Decretals (Dist. xlv can., De Judaeis): "The holy synod prescribes, with regard to the Jews, that for the future, none are to be compelled to believe." Therefore, in like manner, neither should unbelievers be compelled to the faith.

Objection 3. Further, Augustine says (Tract. xxvi in Joan.) that "it is possible for a man to do other things against his will, but he cannot believe unless he is willing." Therefore it seems that unbelievers ought not to be compelled to the faith.

Objection 4. It is said in God's person (Ezekiel 18:32 [Ezekiel 33:11]): "I desire not the death of the sinner [Vulgate: 'of him that dieth']." Now we ought to conform our will to the Divine will, as stated above (I-II:19:9 and I-II:19:10). Therefore we should not even wish unbelievers to be put to death.

On the contrary, It is written (Luke 14:23): "Go out into the highways and hedges; and compel them to come in." Now men enter into the house of God, i.e. into Holy Church, by faith. Therefore some ought to be compelled to the faith.

I answer that, Among unbelievers there are some who have never received the faith, such as the heathens and the Jews: and these are by no means to be compelled to the faith, in order that they may believe, because to believe depends on the will: nevertheless they should be compelled by the faithful, if it be possible to do so, so that they do not hinder the faith, by their blasphemies, or by their evil persuasions, or even by their open persecutions. It is for this reason that Christ's faithful often wage war with unbelievers, not indeed for the purpose of forcing them to believe, because even if they were to conquer them, and take them prisoners, they should still leave them free to believe, if they will, but in order to prevent them from hindering the faith of Christ.

On the other hand, there are unbelievers who at some time have accepted the faith, and professed it, such as heretics and all apostates: such should be submitted even to bodily compulsion, that they may fulfil what they have promised, and hold what they, at one time, received.

Reply to Objection 1. Some have understood the authority quoted to forbid, not the excommunication but the slaying of heretics, as appears from the words of Chrysostom. Augustine too, says (Ep. ad Vincent. xciii) of himself: "It was once my opinion that none should be compelled to union with Christ, that we should deal in words, and fight with arguments. However this opinion of mine is undone, not by words of contradiction, but by convincing examples. Because fear of the law was so profitable, that many say: Thanks be to the Lord Who has broken our chains asunder." Accordingly the meaning of Our Lord's words, "Suffer both to grow until the harvest," must be gathered from those which precede, "lest perhaps gathering up the cockle, you root the wheat also together with it." For, Augustine says (Contra Ep. Parmen. iii, 2) "these words show that when this is not to be feared, that is to say, when a man's crime is so publicly known, and so hateful to all, that he has no defenders, or none such as might cause a schism, the severity of discipline should not slacken."

Reply to Objection 2. Those Jews who have in no way received the faith, ought not by no means to be compelled to the faith: if, however, they have received it, they ought to be compelled to keep it, as is stated in the same chapter.

Reply to Objection 3. Just as taking a vow is a matter of will, and keeping a vow, a matter of obligation, so acceptance of the faith is a matter of the will, whereas keeping the faith, when once one has received it, is a matter of obligation. Wherefore heretics should be compelled to keep the faith. Thus Augustine says to the Count Boniface (Ep. clxxxv): "What do these people mean by crying out continually: 'We may believe or not believe just as we choose. Whom did Christ compel?' They should remember that Christ at first compelled Paul and afterwards taught Him."

Reply to Objection 4. As Augustine says in the same letter, "none of us wishes any heretic to perish. But the house of David did not deserve to have peace, unless his son Absalom had been killed in the war which he had raised against his father. Thus if the Catholic Church gathers together some of the perdition of others, she heals the sorrow of her maternal heart by the delivery of so many nations."


Whether it is lawful to communicate with unbelievers?

Objection 1. It would seem that it is lawful to communicate with unbelievers. For the Apostle says (1 Corinthians 10:27): "If any of them that believe not, invite you, and you be willing to go, eat of anything that is set before you." And Chrysostom says (Hom. xxv super Epist. ad Heb.): "If you wish to go to dine with pagans, we permit it without any reservation." Now to sit at table with anyone is to communicate with him. Therefore it is lawful to communicate with unbelievers.

Objection 2. Further, the Apostle says (1 Corinthians 5:12): "What have I to do to judge them that are without?" Now unbelievers are without. When, therefore, the Church forbids the faithful to communicate with certain people, it seems that they ought not to be forbidden to communicate with unbelievers.

Objection 3. Further, a master cannot employ his servant, unless he communicate with him, at least by word, since the master moves his servant by command. Now Christians can have unbelievers, either Jews, or pagans, or Saracens, for servants. Therefore they can lawfully communicate with them.

On the contrary, It is written (Deuteronomy 7:2-3): "Thou shalt make no league with them, nor show mercy to them; neither shalt thou make marriages with them": and a gloss on Leviticus 15:19, "The woman who at the return of the month," etc. says: "It is so necessary to shun idolatry, that we should not come in touch with idolaters or their disciples, nor have any dealings with them."

I answer that, Communication with a particular person is forbidden to the faithful, in two ways: first, as a punishment of the person with whom they are forbidden to communicate; secondly, for the safety of those who are forbidden to communicate with others. Both motives can be gathered from the Apostle's words (1 Corinthians 5:6). For after he had pronounced sentence of excommunication, he adds as his reason: "Know you not that a little leaven corrupts the whole lump?" and afterwards he adds the reason on the part of the punishment inflicted by the sentence of the Church when he says (1 Corinthians 5:12): "Do not you judge them that are within?"

Accordingly, in the first way the Church does not forbid the faithful to communicate with unbelievers, who have not in any way received the Christian faith, viz. with pagans and Jews, because she has not the right to exercise spiritual judgment over them, but only temporal judgment, in the case when, while dwelling among Christians they are guilty of some misdemeanor, and are condemned by the faithful to some temporal punishment. On the other hand, in this way, i.e. as a punishment, the Church forbids the faithful to communicate with those unbelievers who have forsaken the faith they once received, either by corrupting the faith, as heretics, or by entirely renouncing the faith, as apostates, because the Church pronounces sentence of excommunication on both.

With regard to the second way, it seems that one ought to distinguish according to the various conditions of persons, circumstances and time. For some are firm in the faith; and so it is to be hoped that their communicating with unbelievers will lead to the conversion of the latter rather than to the aversion of the faithful from the faith. These are not to be forbidden to communicate with unbelievers who have not received the faith, such as pagans or Jews, especially if there be some urgent necessity for so doing. But in the case of simple people and those who are weak in the faith, whose perversion is to be feared as a probable result, they should be forbidden to communicate with unbelievers, and especially to be on very familiar terms with them, or to communicate with them without necessity.

This suffices for the Reply to the First Objection.

Reply to Objection 2. The Church does not exercise judgment against unbelievers in the point of inflicting spiritual punishment on them: but she does exercise judgment over some of them in the matter of temporal punishment. It is under this head that sometimes the Church, for certain special sins, withdraws the faithful from communication with certain unbelievers.

Reply to Objection 3. There is more probability that a servant who is ruled by his master's commands, will be converted to the faith of his master who is a believer, than if the case were the reverse: and so the faithful are not forbidden to have unbelieving servants. If, however, the master were in danger, through communicating with such a servant, he should send him away, according to Our Lord's command (Matthew 18:8): "If . . . thy foot scandalize thee, cut it off, and cast it from thee."

With regard to the argument in the contrary [The Leonine Edition gives this solution before the Reply to Objection 2 sense the reply is that the Lord gave this command in reference to those nations into whose territory the Jews were about to enter. For the latter were inclined to idolatry, so that it was to be feared lest, through frequent dealings with those nations, they should be estranged from the faith: hence the text goes on (Deuteronomy 7:4): "For she will turn away thy son from following Me."


Whether unbelievers may have authority or dominion over the faithful?

Objection 1. It would seem that unbelievers may have authority or dominion over the faithful. For the Apostle says (1 Timothy 6:1): "Whosoever are servants under the yoke, let them count their masters worthy of all honor": and it is clear that he is speaking of unbelievers, since he adds (1 Timothy 6:2): "But they that have believing masters, let them not despise them." Moreover it is written (1 Peter 2:18): "Servants be subject to your masters with all fear, not only to the good and gentle, but also to the froward." Now this command would not be contained in the apostolic teaching unless unbelievers could have authority over the faithful. Therefore it seems that unbelievers can have authority over the faithful.

Objection 2. Further, all the members of a prince's household are his subjects. Now some of the faithful were members of unbelieving princes' households, for we read in the Epistle to the Philippians (4:22): "All the saints salute you, especially they that are of Caesar's household," referring to Nero, who was an unbeliever. Therefore unbelievers can have authority over the faithful.

Objection 3. Further, according to the Philosopher (Polit. i, 2) a slave is his master's instrument in matters concerning everyday life, even as a craftsman's laborer is his instrument in matters concerning the working of his art. Now, in such matters, a believer can be subject to an unbeliever, for he may work on an unbeliever's farm. Therefore unbelievers may have authority over the faithful even as to dominion.

On the contrary, Those who are in authority can pronounce judgment on those over whom they are placed. But unbelievers cannot pronounce judgment on the faithful, for the Apostle says (1 Corinthians 6:1): "Dare any of you, having a matter against another, go to be judged before the unjust," i.e. unbelievers, "and not before the saints?" Therefore it seems that unbelievers cannot have authority over the faithful.

I answer that, That this question may be considered in two ways. First, we may speak of dominion or authority of unbelievers over the faithful as of a thing to be established for the first time. This ought by no means to be allowed, since it would provoke scandal and endanger the faith, for subjects are easily influenced by their superiors to comply with their commands, unless the subjects are of great virtue: moreover unbelievers hold the faith in contempt, if they see the faithful fall away. Hence the Apostle forbade the faithful to go to law before an unbelieving judge. And so the Church altogether forbids unbelievers to acquire dominion over believers, or to have authority over them in any capacity whatever.

Secondly, we may speak of dominion or authority, as already in force: and here we must observe that dominion and authority are institutions of human law, while the distinction between faithful and unbelievers arises from the Divine law. Now the Divine law which is the law of grace, does not do away with human law which is the law of natural reason. Wherefore the distinction between faithful and unbelievers, considered in itself, does not do away with dominion and authority of unbelievers over the faithful.

Nevertheless this right of dominion or authority can be justly done away with by the sentence or ordination of the Church who has the authority of God: since unbelievers in virtue of their unbelief deserve to forfeit their power over the faithful who are converted into children of God.

This the Church does sometimes, and sometimes not. For among those unbelievers who are subject, even in temporal matters, to the Church and her members, the Church made the law that if the slave of a Jew became a Christian, he should forthwith receive his freedom, without paying any price, if he should be a "vernaculus," i.e. born in slavery; and likewise if, when yet an unbeliever, he had been bought for his service: if, however, he had been bought for sale, then he should be offered for sale within three months. Nor does the Church harm them in this, because since those Jews themselves are subject to the Church, she can dispose of their possessions, even as secular princes have enacted many laws to be observed by their subjects, in favor of liberty. On the other hand, the Church has not applied the above law to those unbelievers who are not subject to her or her members, in temporal matters, although she has the right to do so: and this, in order to avoid scandal, for as Our Lord showed (Matthew 17:25-26) that He could be excused from paying the tribute, because "the children are free," yet He ordered the tribute to be paid in order to avoid giving scandal. Thus Paul too, after saying that servants should honor their masters, adds, "lest the name of the Lord and His doctrine be blasphemed."

This suffices for the Reply to the First Objection.

Reply to Objection 2. The authority of Caesar preceded the distinction of faithful from unbelievers. Hence it was not cancelled by the conversion of some to the faith. Moreover it was a good thing that there should be a few of the faithful in the emperor's household, that they might defend the rest of the faithful. Thus the Blessed Sebastian encouraged those whom he saw faltering under torture, and, the while, remained hidden under the military cloak in the palace of Diocletian.

Reply to Objection 3. Slaves are subject to their masters for their whole lifetime, and are subject to their overseers in everything: whereas the craftsman's laborer is subject to him for certain special works. Hence it would be more dangerous for unbelievers to have dominion or authority over the faithful, than that they should be allowed to employ them in some craft. Wherefore the Church permits Christians to work on the land of Jews, because this does not entail their living together with them. Thus Solomon besought the King of Tyre to send master workmen to hew the trees, as related in 1 Kings 5:6. Yet, if there be reason to fear that the faithful will be perverted by such communications and dealings, they should be absolutely forbidden.


Whether the rites of unbelievers ought to be tolerated?

Objection 1. It would seem that rites of unbelievers ought not to be tolerated. For it is evident that unbelievers sin in observing their rites: and not to prevent a sin, when one can, seems to imply consent therein, as a gloss observes on Romans 1:32: "Not only they that do them, but they also that consent to them that do them." Therefore it is a sin to tolerate their rites.

Objection 2. Further, the rites of the Jews are compared to idolatry, because a gloss on Galatians 5:1, "Be not held again under the yoke of bondage," says: "The bondage of that law was not lighter than that of idolatry." But it would not be allowable for anyone to observe the rites of idolatry, in fact Christian princes at first caused the temples of idols to be closed, and afterwards, to be destroyed, as Augustine relates (De Civ. Dei xviii, 54). Therefore it follows that even the rites of Jews ought not to be tolerated.

Objection 3. Further, unbelief is the greatest of sins, as stated above (Article 3). Now other sins such as adultery, theft and the like, are not tolerated, but are punishable by law. Therefore neither ought the rites of unbelievers to be tolerated.

On the contrary, Gregory [Regist. xi, Ep. 15: cf. Decret., dist. xlv, can., Qui sincera] says, speaking of the Jews: "They should be allowed to observe all their feasts, just as hitherto they and their fathers have for ages observed them."

I answer that, Human government is derived from the Divine government, and should imitate it. Now although God is all-powerful and supremely good, nevertheless He allows certain evils to take place in the universe, which He might prevent, lest, without them, greater goods might be forfeited, or greater evils ensue. Accordingly in human government also, those who are in authority, rightly tolerate certain evils, lest certain goods be lost, or certain greater evils be incurred: thus Augustine says (De Ordine ii, 4): "If you do away with harlots, the world will be convulsed with lust." Hence, though unbelievers sin in their rites, they may be tolerated, either on account of some good that ensues therefrom, or because of some evil avoided. Thus from the fact that the Jews observe their rites, which, of old, foreshadowed the truth of the faith which we hold, there follows this good—that our very enemies bear witness to our faith, and that our faith is represented in a figure, so to speak. For this reason they are tolerated in the observance of their rites.

On the other hand, the rites of other unbelievers, which are neither truthful nor profitable are by no means to be tolerated, except perchance in order to avoid an evil, e.g. the scandal or disturbance that might ensue, or some hindrance to the salvation of those who if they were unmolested might gradually be converted to the faith. For this reason the Church, at times, has tolerated the rites even of heretics and pagans, when unbelievers were very numerous.

This suffices for the Replies to the Objections.


Whether the children of Jews and other unbelievers ought to be baptized against their parents' will?

Objection 1. It would seem that the children of Jews and of other unbelievers ought to be baptized against their parents' will. For the bond of marriage is stronger than the right of parental authority over children, since the right of parental authority can be made to cease, when a son is set at liberty; whereas the marriage bond cannot be severed by man, according to Matthew 19:6: "What . . . God hath joined together let no man put asunder." And yet the marriage bond is broken on account of unbelief: for the Apostle says (1 Corinthians 7:15): "If the unbeliever depart, let him depart. For a brother or sister is not under servitude in such cases": and a canon [Can. Uxor legitima, and Idololatria, qu. i] says that "if the unbelieving partner is unwilling to abide with the other, without insult to their Creator, then the other partner is not bound to cohabitation." Much more, therefore, does unbelief abrogate the right of unbelieving parents' authority over their children: and consequently their children may be baptized against their parents' will.

Objection 2. Further, one is more bound to succor a man who is in danger of everlasting death, than one who is in danger of temporal death. Now it would be a sin, if one saw a man in danger of temporal death and failed to go to his aid. Since, then, the children of Jews and other unbelievers are in danger of everlasting death, should they be left to their parents who would imbue them with their unbelief, it seems that they ought to be taken away from them and baptized, and instructed in the faith.

Objection 3. Further, the children of a bondsman are themselves bondsmen, and under the power of his master. Now the Jews are bondsmen of kings and princes: therefore their children are also. Consequently kings and princes have the power to do what they will with Jewish children. Therefore no injustice is committed if they baptize them against their parents' wishes.

Objection 4. Further, every man belongs more to God, from Whom he has his soul, than to his carnal father, from whom he has his body. Therefore it is not unjust if Jewish children be taken away from their parents, and consecrated to God in Baptism.

Objection 5. Further, Baptism avails for salvation more than preaching does, since Baptism removes forthwith the stain of sin and the debt of punishment, and opens the gate of heaven. Now if danger ensue through not preaching, it is imputed to him who omitted to preach, according to the words of Ezekiel 33:6 about the man who "sees the sword coming and sounds not the trumpet." Much more therefore, if Jewish children are lost through not being baptized are they accounted guilty of sin, who could have baptized them and did not.

On the contrary, Injustice should be done to no man. Now it would be an injustice to Jews if their children were to be baptized against their will, since they would lose the rights of parental authority over their children as soon as these were Christians. Therefore these should not be baptized against their parents' will.

I answer that, The custom of the Church has very great authority and ought to be jealously observed in all things, since the very doctrine of catholic doctors derives its authority from the Church. Hence we ought to abide by the authority of the Church rather than by that of an Augustine or a Jerome or of any doctor whatever. Now it was never the custom of the Church to baptize the children of the Jews against the will of their parents, although at times past there have been many very powerful catholic princes like Constantine and Theodosius, with whom most holy bishops have been on most friendly terms, as Sylvester with Constantine, and Ambrose with Theodosius, who would certainly not have failed to obtain this favor from them if it had been at all reasonable. It seems therefore hazardous to repeat this assertion, that the children of Jews should be baptized against their parents' wishes, in contradiction to the Church's custom observed hitherto.

There are two reasons for this custom. One is on account of the danger to the faith. For children baptized before coming to the use of reason, afterwards when they come to perfect age, might easily be persuaded by their parents to renounce what they had unknowingly embraced; and this would be detrimental to the faith.

The other reason is that it is against natural justice. For a child is by nature part of its father: thus, at first, it is not distinct from its parents as to its body, so long as it is enfolded within its mother's womb; and later on after birth, and before it has the use of its free-will, it is enfolded in the care of its parents, which is like a spiritual womb, for so long as man has not the use of reason, he differs not from an irrational animal; so that even as an ox or a horse belongs to someone who, according to the civil law, can use them when he likes, as his own instrument, so, according to the natural law, a son, before coming to the use of reason, is under his father's care. Hence it would be contrary to natural justice, if a child, before coming to the use of reason, were to be taken away from its parents' custody, or anything done to it against its parents' wish. As soon, however, as it begins to have the use of its free-will, it begins to belong to itself, and is able to look after itself, in matters concerning the Divine or the natural law, and then it should be induced, not by compulsion but by persuasion, to embrace the faith: it can then consent to the faith, and be baptized, even against its parents' wish; but not before it comes to the use of reason. Hence it is said of the children of the fathers of old that they were saved in the faith of their parents; whereby we are given to understand that it is the parents' duty to look after the salvation of their children, especially before they come to the use of reason.

Reply to Objection 1. In the marriage bond, both husband and wife have the use of the free-will, and each can assent to the faith without the other's consent. But this does not apply to a child before it comes to the use of reason: yet the comparison holds good after the child has come to the use of reason, if it is willing to be converted.

Reply to Objection 2. No one should be snatched from natural death against the order of civil law: for instance, if a man were condemned by the judge to temporal death, nobody ought to rescue him by violence: hence no one ought to break the order of the natural law, whereby a child is in the custody of its father, in order to rescue it from the danger of everlasting death.

Reply to Objection 3. Jews are bondsmen of princes by civil bondage, which does not exclude the order of natural or Divine law.

Reply to Objection 4. Man is directed to God by his reason, whereby he can know Him. Hence a child before coming to the use of reason, in the natural order of things, is directed to God by its parents' reason, under whose care it lies by nature: and it is for them to dispose of the child in all matters relating to God.

Reply to Objection 5. The peril that ensues from the omission of preaching, threatens only those who are entrusted with the duty of preaching. Hence it had already been said (Ezekiel 3:17): "I have made thee a watchman to the children [Vulgate: 'house'] of Israel." On the other hand, to provide the sacraments of salvation for the children of unbelievers is the duty of their parents. Hence it is they whom the danger threatens, if through being deprived of the sacraments their children fail to obtain salvation.

The Summa Theologiæ of St. Thomas AquinasSecond and Revised Edition, 1920Literally translated by Fathers of the English Dominican ProvinceOnline Edition Copyright © 2017 by Kevin Knight Nihil Obstat. F. Innocentius Apap, O.P., S.T.M., Censor. Theol.Imprimatur. Edus. Canonicus Surmont, Vicarius Generalis. Westmonasterii.APPROBATIO ORDINISNihil Obstat. F. Raphael Moss, O.P., S.T.L. and F. Leo Moore, O.P., S.T.L.Imprimatur. F. Beda Jarrett, O.P., S.T.L., A.M., Prior Provincialis AngliæMARIÆ IMMACULATÆ - SEDI SAPIENTIÆ

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Whether heresy is a species of unbelief?

Objection 1. It would seem that heresy is not a species of unbelief. For unbelief is in the understanding, as stated above (II-II:10:2). Now heresy would seem not to pertain to the understanding, but rather to the appetitive power; for Jerome says on Galatians 5:19: [Cf. Decretals xxiv, qu. iii, cap. 27 "The works of the flesh are manifest: Heresy is derived from a Greek word meaning choice, whereby a man makes choice of that school which he deems best." But choice is an act of the appetitive power, as stated above (I-II:13:1). Therefore heresy is not a species of unbelief.

Objection 2. Further, vice takes its species chiefly from its end; hence the Philosopher says (Ethic. v, 2) that "he who commits adultery that he may steal, is a thief rather than an adulterer." Now the end of heresy is temporal profit, especially lordship and glory, which belong to the vice of pride or covetousness: for Augustine says (De Util. Credendi i) that "a heretic is one who either devises or follows false and new opinions, for the sake of some temporal profit, especially that he may lord and be honored above others." Therefore heresy is a species of pride rather than of unbelief.

Objection 3. Further, since unbelief is in the understanding, it would seem not to pertain to the flesh. Now heresy belongs to the works of the flesh, for the Apostle says (Galatians 5:19): "The works of the flesh are manifest, which are fornication, uncleanness," and among the others, he adds, "dissensions, sects," which are the same as heresies. Therefore heresy is not a species of unbelief.

On the contrary, Falsehood is contrary to truth. Now a heretic is one who devises or follows false or new opinions. Therefore heresy is opposed to the truth, on which faith is founded; and consequently it is a species of unbelief.

I answer that, The word heresy as stated in the first objection denotes a choosing. Now choice as stated above (I-II:13:3) is about things directed to the end, the end being presupposed. Now, in matters of faith, the will assents to some truth, as to its proper good, as was shown above (II-II:4:3): wherefore that which is the chief truth, has the character of last end, while those which are secondary truths, have the character of being directed to the end.

Now, whoever believes, assents to someone's words; so that, in every form of unbelief, the person to whose words assent is given seems to hold the chief place and to be the end as it were; while the things by holding which one assents to that person hold a secondary place. Consequently he that holds the Christian faith aright, assents, by his will, to Christ, in those things which truly belong to His doctrine.

Accordingly there are two ways in which a man may deviate from the rectitude of the Christian faith. First, because he is unwilling to assent to Christ: and such a man has an evil will, so to say, in respect of the very end. This belongs to the species of unbelief in pagans and Jews. Secondly, because, though he intends to assent to Christ, yet he fails in his choice of those things wherein he assents to Christ, because he chooses not what Christ really taught, but the suggestions of his own mind.

Therefore heresy is a species of unbelief, belonging to those who profess the Christian faith, but corrupt its dogmas.

Reply to Objection 1. Choice regards unbelief in the same way as the will regards faith, as stated above.

Reply to Objection 2. Vices take their species from their proximate end, while, from their remote end, they take their genus and cause. Thus in the case of adultery committed for the sake of theft, there is the species of adultery taken from its proper end and object; but the ultimate end shows that the act of adultery is both the result of the theft, and is included under it, as an effect under its cause, or a species under its genus, as appears from what we have said about acts in general (I-II:18:7). Wherefore, as to the case in point also, the proximate end of heresy is adherence to one's own false opinion, and from this it derives its species, while its remote end reveals its cause, viz. that it arises from pride or covetousness.

Reply to Objection 3. Just as heresy is so called from its being a choosing [From the Greek airein [hairein], to cut off], so does sect derive its name from its being a cutting off [secando], as Isidore states (Etym. viii, 3). Wherefore heresy and sect are the same thing, and each belongs to the works of the flesh, not indeed by reason of the act itself of unbelief in respect of its proximate object, but by reason of its cause, which is either the desire of an undue end in which way it arises from pride or covetousness, as stated in the second objection, or some illusion of the imagination (which gives rise to error, as the Philosopher states in Metaph. iv; Ed. Did. iii, 5), for this faculty has a certain connection with the flesh, in as much as its act is independent on a bodily organ.


Whether heresy is properly about matters of faith?

Objection 1. It would seem that heresy is not properly about matters of faith. For just as there are heresies and sects among Christians, so were there among the Jews, and Pharisees, as Isidore observes (Etym. viii, 3,4,5). Now their dissensions were not about matters of faith. Therefore heresy is not about matters of faith, as though they were its proper matter.

Objection 2. Further, the matter of faith is the thing believed. Now heresy is not only about things, but also about works, and about interpretations of Holy Writ. For Jerome says on Galatians 5:20 that "whoever expounds the Scriptures in any sense but that of the Holy Ghost by Whom they were written, may be called a heretic, though he may not have left the Church": and elsewhere he says that "heresies spring up from words spoken amiss." [St. Thomas quotes this saying elsewhere, in Sent. iv, D, 13, and III, 16, 8, but it is not to be found in St. Jerome's works.] Therefore heresy is not properly about the matter of faith.

Objection 3. Further, we find the holy doctors differing even about matters pertaining to the faith, for example Augustine and Jerome, on the question about the cessation of the legal observances: and yet this was without any heresy on their part. Therefore heresy is not properly about the matter of faith.

On the contrary, Augustine says against the Manichees [Cf. De Civ. Dei xviii, 1]: "In Christ's Church, those are heretics, who hold mischievous and erroneous opinions, and when rebuked that they may think soundly and rightly, offer a stubborn resistance, and, refusing to mend their pernicious and deadly doctrines, persist in defending them." Now pernicious and deadly doctrines are none but those which are contrary to the dogmas of faith, whereby "the just man liveth" (Romans 1:17). Therefore heresy is about matters of faith, as about its proper matter.

I answer that, We are speaking of heresy now as denoting a corruption of the Christian faith. Now it does not imply a corruption of the Christian faith, if a man has a false opinion in matters that are not of faith, for instance, in questions of geometry and so forth, which cannot belong to the faith by any means; but only when a person has a false opinion about things belonging to the faith.

Now a thing may be of the faith in two ways, as stated above (I:32:4; I-II:1:6 ad 1; I-II:2:5), in one way, directly and principally, e.g. the articles of faith; in another way, indirectly and secondarily, e.g. those matters, the denial of which leads to the corruption of some article of faith; and there may be heresy in either way, even as there can be faith.

Reply to Objection 1. Just as the heresies of the Jews and Pharisees were about opinions relating to Judaism or Pharisaism, so also heresies among Christians are about matter touching the Christian faith.

Reply to Objection 2. A man is said to expound Holy Writ in another sense than that required by the Holy Ghost, when he so distorts the meaning of Holy Writ, that it is contrary to what the Holy Ghost has revealed. Hence it is written (Ezekiel 13:6) about the false prophets: "They have persisted to confirm what they have said," viz. by false interpretations of Scripture. Moreover a man professes his faith by the words that he utters, since confession is an act of faith, as stated above (II-II:3:1). Wherefore inordinate words about matters of faith may lead to corruption of the faith; and hence it is that Pope Leo says in a letter to Proterius, Bishop of Alexandria: "The enemies of Christ's cross lie in wait for our every deed and word, so that, if we but give them the slightest pretext, they may accuse us mendaciously of agreeing with Nestorius."

Reply to Objection 3. As Augustine says (Ep. xliii) and we find it stated in the Decretals (xxiv, qu. 3, can. Dixit Apostolus): "By no means should we accuse of heresy those who, however false and perverse their opinion may be, defend it without obstinate fervor, and seek the truth with careful anxiety, ready to mend their opinion, when they have found the truth," because, to wit, they do not make a choice in contradiction to the doctrine of the Church. Accordingly, certain doctors seem to have differed either in matters the holding of which in this or that way is of no consequence, so far as faith is concerned, or even in matters of faith, which were not as yet defined by the Church; although if anyone were obstinately to deny them after they had been defined by the authority of the universal Church, he would be deemed a heretic. This authority resides chiefly in the Sovereign Pontiff. For we read [Decret. xxiv, qu. 1, can. Quoties]: "Whenever a question of faith is in dispute, I think, that all our brethren and fellow bishops ought to refer the matter to none other than Peter, as being the source of their name and honor, against whose authority neither Jerome nor Augustine nor any of the holy doctors defended their opinion." Hence Jerome says (Exposit. Symbol [Among the supposititious works of St. Jerome]): "This, most blessed Pope, is the faith that we have been taught in the Catholic Church. If anything therein has been incorrectly or carelessly expressed, we beg that it may be set aright by you who hold the faith and see of Peter. If however this, our profession, be approved by the judgment of your apostleship, whoever may blame me, will prove that he himself is ignorant, or malicious, or even not a catholic but a heretic."


Whether heretics ought to be tolerated?

Objection 1. It seems that heretics ought to be tolerated. For the Apostle says (2 Timothy 2:24-25): "The servant of the Lord must not wrangle . . . with modesty admonishing them that resist the truth, if peradventure God may give them repentance to know the truth, and they may recover themselves from the snares of the devil." Now if heretics are not tolerated but put to death, they lose the opportunity of repentance. Therefore it seems contrary to the Apostle's command.

Objection 2. Further, whatever is necessary in the Church should be tolerated. Now heresies are necessary in the Church, since the Apostle says (1 Corinthians 11:19): "There must be . . . heresies, that they . . . who are reproved, may be manifest among you." Therefore it seems that heretics should be tolerated.

Objection 3. Further, the Master commanded his servants (Matthew 13:30) to suffer the cockle "to grow until the harvest," i.e. the end of the world, as a gloss explains it. Now holy men explain that the cockle denotes heretics. Therefore heretics should be tolerated.

On the contrary, The Apostle says (Titus 3:10-11): "A man that is a heretic, after the first and second admonition, avoid: knowing that he, that is such an one, is subverted."

I answer that, With regard to heretics two points must be observed: one, on their own side; the other, on the side of the Church. On their own side there is the sin, whereby they deserve not only to be separated from the Church by excommunication, but also to be severed from the world by death. For it is a much graver matter to corrupt the faith which quickens the soul, than to forge money, which supports temporal life. Wherefore if forgers of money and other evil-doers are forthwith condemned to death by the secular authority, much more reason is there for heretics, as soon as they are convicted of heresy, to be not only excommunicated but even put to death.

On the part of the Church, however, there is mercy which looks to the conversion of the wanderer, wherefore she condemns not at once, but "after the first and second admonition," as the Apostle directs: after that, if he is yet stubborn, the Church no longer hoping for his conversion, looks to the salvation of others, by excommunicating him and separating him from the Church, and furthermore delivers him to the secular tribunal to be exterminated thereby from the world by death. For Jerome commenting on Galatians 5:9, "A little leaven," says: "Cut off the decayed flesh, expel the mangy sheep from the fold, lest the whole house, the whole paste, the whole body, the whole flock, burn, perish, rot, die. Arius was but one spark in Alexandria, but as that spark was not at once put out, the whole earth was laid waste by its flame."

Reply to Objection 1. This very modesty demands that the heretic should be admonished a first and second time: and if he be unwilling to retract, he must be reckoned as already "subverted," as we may gather from the words of the Apostle quoted above.

Reply to Objection 2. The profit that ensues from heresy is beside the intention of heretics, for it consists in the constancy of the faithful being put to the test, and "makes us shake off our sluggishness, and search the Scriptures more carefully," as Augustine states (De Gen. cont. Manich. i, 1). What they really intend is the corruption of the faith, which is to inflict very great harm indeed. Consequently we should consider what they directly intend, and expel them, rather than what is beside their intention, and so, tolerate them.

Reply to Objection 3. According to Decret. (xxiv, qu. iii, can. Notandum), "to be excommunicated is not to be uprooted." A man is excommunicated, as the Apostle says (1 Corinthians 5:5) that his "spirit may be saved in the day of Our Lord." Yet if heretics be altogether uprooted by death, this is not contrary to Our Lord's command, which is to be understood as referring to the case when the cockle cannot be plucked up without plucking up the wheat, as we explained above (II-II:10:8 ad 1), when treating of unbelievers in general.


Whether the Church should receive those who return from heresy?

Objection 1. It would seem that the Church ought in all cases to receive those who return from heresy. For it is written (Jeremiah 3:1) in the person of the Lord: "Thou hast prostituted thyself to many lovers; nevertheless return to Me saith the Lord." Now the sentence of the Church is God's sentence, according to Deuteronomy 1:17: "You shall hear the little as well as the great: neither shall you respect any man's person, because it is the judgment of God." Therefore even those who are guilty of the prostitution of unbelief which is spiritual prostitution, should be received all the same.

Objection 2. Further, Our Lord commanded Peter (Matthew 18:22) to forgive his offending brother "not" only "till seven times, but till seventy times seven times," which Jerome expounds as meaning that "a man should be forgiven, as often as he has sinned." Therefore he ought to be received by the Church as often as he has sinned by falling back into heresy.

Objection 3. Further, heresy is a kind of unbelief. Now other unbelievers who wish to be converted are received by the Church. Therefore heretics also should be received.

On the contrary, The Decretal Ad abolendam (De Haereticis, cap. ix) says that "those who are found to have relapsed into the error which they had already abjured, must be left to the secular tribunal." Therefore they should not be received by the Church.

I answer that, In obedience to Our Lord's institution, the Church extends her charity to all, not only to friends, but also to foes who persecute her, according to Matthew 5:44: "Love your enemies; do good to them that hate you." Now it is part of charity that we should both wish and work our neighbor's good. Again, good is twofold: one is spiritual, namely the health of the soul, which good is chiefly the object of charity, since it is this chiefly that we should wish for one another. Consequently, from this point of view, heretics who return after falling no matter how often, are admitted by the Church to Penance whereby the way of salvation is opened to them.

The other good is that which charity considers secondarily, viz. temporal good, such as life of the body, worldly possessions, good repute, ecclesiastical or secular dignity, for we are not bound by charity to wish others this good, except in relation to the eternal salvation of them and of others. Hence if the presence of one of these goods in one individual might be an obstacle to eternal salvation in many, we are not bound out of charity to wish such a good to that person, rather should we desire him to be without it, both because eternal salvation takes precedence of temporal good, and because the good of the many is to be preferred to the good of one. Now if heretics were always received on their return, in order to save their lives and other temporal goods, this might be prejudicial to the salvation of others, both because they would infect others if they relapsed again, and because, if they escaped without punishment, others would feel more assured in lapsing into heresy. For it is written (Ecclesiastes 8:11): "For because sentence is not speedily pronounced against the evil, the children of men commit evils without any fear."

For this reason the Church not only admits to Penance those who return from heresy for the first time, but also safeguards their lives, and sometimes by dispensation, restores them to the ecclesiastical dignities which they may have had before, should their conversion appear to be sincere: we read of this as having frequently been done for the good of peace. But when they fall again, after having been received, this seems to prove them to be inconstant in faith, wherefore when they return again, they are admitted to Penance, but are not delivered from the pain of death.

Reply to Objection 1. In God's tribunal, those who return are always received, because God is a searcher of hearts, and knows those who return in sincerity. But the Church cannot imitate God in this, for she presumes that those who relapse after being once received, are not sincere in their return; hence she does not debar them from the way of salvation, but neither does she protect them from the sentence of death.

Reply to Objection 2. Our Lord was speaking to Peter of sins committed against oneself, for one should always forgive such offenses and spare our brother when he repents. These words are not to be applied to sins committed against one's neighbor or against God, for it is not left to our discretion to forgive such offenses, as Jerome says on Matthew 18:15, "If thy brother shall offend against thee." Yet even in this matter the law prescribes limits according as God's honor or our neighbor's good demands.

Reply to Objection 3. When other unbelievers, who have never received the faith are converted, they do not as yet show signs of inconstancy in faith, as relapsed heretics do; hence the comparison fails.

The Summa Theologiæ of St. Thomas AquinasSecond and Revised Edition, 1920Literally translated by Fathers of the English Dominican ProvinceOnline Edition Copyright © 2017 by Kevin Knight Nihil Obstat. F. Innocentius Apap, O.P., S.T.M., Censor. Theol.Imprimatur. Edus. Canonicus Surmont, Vicarius Generalis. Westmonasterii.APPROBATIO ORDINISNihil Obstat. F. Raphael Moss, O.P., S.T.L. and F. Leo Moore, O.P., S.T.L.Imprimatur. F. Beda Jarrett, O.P., S.T.L., A.M., Prior Provincialis AngliæMARIÆ IMMACULATÆ - SEDI SAPIENTIÆ

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Whether apostasy pertains to unbelief?

Objection 1. It would seem that apostasy does not pertain to unbelief. For that which is the origin of all sins, does not, seemingly, pertain to unbelief, since many sins there are without unbelief. Now apostasy seems to be the origin of every sin, for it is written (Sirach 10:14): "The beginning of the pride of man is apostasy [Douay: 'to fall off'] from God," and further on, (Sirach 10:15): "Pride is the beginning of all sin." Therefore apostasy does not pertain to unbelief.

Objection 2. Further, unbelief is an act of the understanding: whereas apostasy seems rather to consist in some outward deed or utterance, or even in some inward act of the will, for it is written (Proverbs 6:12-14): "A man that is an apostate, an unprofitable man walketh with a perverse mouth. He winketh with the eyes, presseth with the foot, speaketh with the finger. With a wicked heart he deviseth evil, and at all times he soweth discord." Moreover if anyone were to have himself circumcised, or to worship at the tomb of Mahomet, he would be deemed an apostate. Therefore apostasy does not pertain to unbelief.

Objection 3. Further, heresy, since it pertains to unbelief, is a determinate species of unbelief. If then, apostasy pertained to unbelief, it would follow that it is a determinate species of unbelief, which does not seem to agree with what has been said (II-II:10:5. Therefore apostasy does not pertain to unbelief.

On the contrary, It is written (John 6:67): "Many of his disciples went back," i.e. apostatized, of whom Our Lord had said previously (John 6:65): "There are some of you that believe not." Therefore apostasy pertains to unbelief.

I answer that, Apostasy denotes a backsliding from God. This may happen in various ways according to the different kinds of union between man and God. For, in the first place, man is united to God by faith; secondly, by having his will duly submissive in obeying His commandments; thirdly, by certain special things pertaining to supererogation such as the religious life, the clerical state, or Holy Orders. Now if that which follows be removed, that which precedes, remains, but the converse does not hold. Accordingly a man may apostatize from God, by withdrawing from the religious life to which he was bound by profession, or from the Holy Order which he had received: and this is called "apostasy from religious life" or "Orders." A man may also apostatize from God, by rebelling in his mind against the Divine commandments: and though man may apostatize in both the above ways, he may still remain united to God by faith.

But if he give up the faith, then he seems to turn away from God altogether: and consequently, apostasy simply and absolutely is that whereby a man withdraws from the faith, and is called "apostasy of perfidy." On this way apostasy, simply so called, pertains to unbelief.

Reply to Objection 1. This objection refers to the second kind of apostasy, which denotes an act of the will in rebellion against God's commandments, an act that is to be found in every mortal sin.

Reply to Objection 2. It belongs to faith not only that the heart should believe, but also that external words and deeds should bear witness to the inward faith, for confession is an act of faith. On this way too, certain external words or deeds pertain to unbelief, in so far as they are signs of unbelief, even as a sign of health is said itself to be healthy. Now although the authority quoted may be understood as referring to every kind of apostate, yet it applies most truly to an apostate from the faith. For since faith is the first foundation of things to be hoped for, and since, without faith it is "impossible to please God"; when once faith is removed, man retains nothing that may be useful for the obtaining of eternal salvation, for which reason it is written (Proverbs 6:12): "A man that is an apostate, an unprofitable man": because faith is the life of the soul, according to Romans 1:17: "The just man liveth by faith." Therefore, just as when the life of the body is taken away, man's every member and part loses its due disposition, so when the life of justice, which is by faith, is done away, disorder appears in all his members. First, in his mouth, whereby chiefly his mind stands revealed; secondly, in his eyes; thirdly, in the instrument of movement; fourthly, in his will, which tends to evil. The result is that "he sows discord," endeavoring to sever others from the faith even as he severed himself.

Reply to Objection 3. The species of a quality or form are not diversified by the fact of its being the term "wherefrom" or "whereto" of movement: on the contrary, it is the movement that takes its species from the terms. Now apostasy regards unbelief as the term "whereto" of the movement of withdrawal from the faith; wherefore apostasy does not imply a special kind of unbelief, but an aggravating circumstance thereof, according to 2 Peter 2:21: "It had been better for them not to know the truth [Vulgate: 'the way of justice'], than after they had known it, to turn back."


Whether a prince forfeits his dominion over his subjects, on account of apostasy from the faith, so that they no longer owe him allegiance?

Objection 1. It would seem that a prince does not so forfeit his dominion over his subjects, on account of apostasy from the faith, that they no longer owe him allegiance. For Ambrose [St. Augustine, Super Psalm 124:3 says that the Emperor Julian, though an apostate, nevertheless had under him Christian soldiers, who when he said to them, "Fall into line for the defense of the republic," were bound to obey. Therefore subjects are not absolved from their allegiance to their prince on account of his apostasy.

Objection 2. Further, an apostate from the faith is an unbeliever. Now we find that certain holy men served unbelieving masters; thus Joseph served Pharaoh, Daniel served Nabuchodonosor, and Mardochai served Assuerus. Therefore apostasy from the faith does not release subjects from allegiance to their sovereign.

Objection 3. Further, just as by apostasy from the faith, a man turns away from God, so does every sin. Consequently if, on account of apostasy from the faith, princes were to lose their right to command those of their subjects who are believers, they would equally lose it on account of other sins: which is evidently not the case. Therefore we ought not to refuse allegiance to a sovereign on account of his apostatizing from the faith.

On the contrary, Gregory VII says (Council, Roman V): "Holding to the institutions of our holy predecessors, we, by our apostolic authority, absolve from their oath those who through loyalty or through the sacred bond of an oath owe allegiance to excommunicated persons: and we absolutely forbid them to continue their allegiance to such persons, until these shall have made amends." Now apostates from the faith, like heretics, are excommunicated, according to the Decretal [Extra, De Haereticis, cap. Ad abolendam]. Therefore princes should not be obeyed when they have apostatized from the faith.

I answer that, As stated above (II-II:10:10), unbelief, in itself, is not inconsistent with dominion, since dominion is a device of the law of nations which is a human law: whereas the distinction between believers and unbelievers is of Divine right, which does not annul human right. Nevertheless a man who sins by unbelief may be sentenced to the loss of his right of dominion, as also, sometimes, on account of other sins.

Now it is not within the competency of the Church to punish unbelief in those who have never received the faith, according to the saying of the Apostle (1 Corinthians 5:12): "What have I to do to judge them that are without?" She can, however, pass sentence of punishment on the unbelief of those who have received the faith: and it is fitting that they should be punished by being deprived of the allegiance of their subjects: for this same allegiance might conduce to great corruption of the faith, since, as was stated above (Article 1, Objection 2), "a man that is an apostate . . . with a wicked heart deviseth evil, and . . . soweth discord," in order to sever others from the faith. Consequently, as soon as sentence of excommunication is passed on a man on account of apostasy from the faith, his subjects are "ipso facto" absolved from his authority and from the oath of allegiance whereby they were bound to him.

Reply to Objection 1. At that time the Church was but recently instituted, and had not, as yet, the power of curbing earthly princes; and so she allowed the faithful to obey Julian the Apostate, in matters that were not contrary to the faith, in order to avoid incurring a yet greater danger.

Reply to Objection 2. As stated in the article, it is not a question of those unbelievers who have never received the faith.

Reply to Objection 3. Apostasy from the faith severs man from God altogether, as stated above (Article 1), which is not the case in any other sin.

The Summa Theologiæ of St. Thomas AquinasSecond and Revised Edition, 1920Literally translated by Fathers of the English Dominican ProvinceOnline Edition Copyright © 2017 by Kevin Knight Nihil Obstat. F. Innocentius Apap, O.P., S.T.M., Censor. Theol.Imprimatur. Edus. Canonicus Surmont, Vicarius Generalis. Westmonasterii.APPROBATIO ORDINISNihil Obstat. F. Raphael Moss, O.P., S.T.L. and F. Leo Moore, O.P., S.T.L.Imprimatur. F. Beda Jarrett, O.P., S.T.L., A.M., Prior Provincialis AngliæMARIÆ IMMACULATÆ - SEDI SAPIENTIÆ

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Whether blasphemy is opposed to the confession of faith?

Objection 1. It would seem that blasphemy is not opposed to the confession of faith. Because to blaspheme is to utter an affront or insult against the Creator. Now this pertains to ill-will against God rather than to unbelief. Therefore blasphemy is not opposed to the confession of faith.

Objection 2. Further, on Ephesians 4:31, "Let blasphemy . . . be put away from you," a gloss says, "that which is committed against God or the saints."

But confession of faith, seemingly, is not about other things than those pertaining to God, Who is the object of faith. Therefore blasphemy is not always opposed to the confession of faith.

Objection 3. Further, according to some, there are three kinds of blasphemy. The first of these is when something unfitting is affirmed of God; the second is when something fitting is denied of Him; and the third, when something proper to God is ascribed to a creature, so that, seemingly, blasphemy is not only about God, but also about His creatures. Now the object of faith is God. Therefore blasphemy is not opposed to confession of faith.

On the contrary, The Apostle says (1 Timothy 1:12-13): "I . . . before was a blasphemer and a persecutor," and afterwards, "I did it ignorantly in" my "unbelief." Hence it seems that blasphemy pertains to unbelief.

I answer that, The word blasphemy seems to denote the disparagement of some surpassing goodness, especially that of God. Now God, as Dionysius says (Div. Nom. i), is the very essence of true goodness. Hence whatever befits God, pertains to His goodness, and whatever does not befit Him, is far removed from the perfection of goodness which is His Essence. Consequently whoever either denies anything befitting God, or affirms anything unbefitting Him, disparages the Divine goodness.

Now this may happen in two ways. On the first way it may happen merely in respect of the opinion in the intellect; in the second way this opinion is united to a certain detestation in the affections, even as, on the other hand, faith in God is perfected by love of Him. Accordingly this disparagement of the Divine goodness is either in the intellect alone, or in the affections also. If it is in thought only, it is blasphemy of the heart, whereas if it betrays itself outwardly in speech it is blasphemy is opposed to confession of faith.

Reply to Objection 1. He that speaks against God, with the intention of reviling Him, disparages the Divine goodness, not only in respect of the falsehood in his intellect, but also by reason of the wickedness of his will, whereby he detests and strives to hinder the honor due to God, and this is perfect blasphemy.

Reply to Objection 2. Even as God is praised in His saints, in so far as praise is given to the works which God does in His saints, so does blasphemy against the saints, redound, as a consequence, against God.

Reply to Objection 3. Properly speaking, the sin of blasphemy is not in this way divided into three species: since to affirm unfitting things, or to deny fitting things of God, differ merely as affirmation and negation. For this diversity does not cause distinct species of habits, since the falsehood of affirmations and negations is made known by the same knowledge, and it is the same ignorance which errs in either way, since negatives are proved by affirmatives, according to Poster. i, 25. Again to ascribe to creatures things that are proper to God, seems to amount to the same as affirming something unfitting of Him, since whatever is proper to God is God Himself: and to ascribe to a creature, that which is proper to God, is to assert that God is the same as a creature.


Whether blasphemy is always a mortal sin?

Objection 1. It would seem that blasphemy is not always a mortal sin. Because a gloss on the words, "Now lay you also all away," etc. (Colossians 3:8) says: "After prohibiting greater crimes he forbids lesser sins": and yet among the latter he includes blasphemy. Therefore blasphemy is comprised among the lesser, i.e. venial, sins.

Objection 2. Further, every mortal sin is opposed to one of the precepts of the decalogue. But, seemingly, blasphemy is not contrary to any of them. Therefore blasphemy is not a mortal sin.

Objection 3. Further, sins committed without deliberation, are not mortal: hence first movements are not mortal sins, because they precede the deliberation of the reason, as was shown above (I-II:74:3; I-II:74:10). Now blasphemy sometimes occurs without deliberation of the reason. Therefore it is not always a mortal sin.

On the contrary, It is written (Leviticus 24:16): "He that blasphemeth the name of the Lord, dying let him die." Now the death punishment is not inflicted except for a mortal sin. Therefore blasphemy is a mortal sin.

I answer that, As stated above (I-II:72:5), a mortal sin is one whereby a man is severed from the first principle of spiritual life, which principle is the charity of God. Therefore whatever things are contrary to charity, are mortal sins in respect of their genus. Now blasphemy, as to its genus, is opposed to Divine charity, because, as stated above (Article 1), it disparages the Divine goodness, which is the object of charity. Consequently blasphemy is a mortal sin, by reason of its genus.

Reply to Objection 1. This gloss is not to be understood as meaning that all the sins which follow, are mortal, but that whereas all those mentioned previously are more grievous sins, some of those mentioned afterwards are less grievous; and yet among the latter some more grievous sins are included.

Reply to Objection 2. Since, as stated above (Article 1), blasphemy is contrary to the confession of faith, its prohibition is comprised under the prohibition of unbelief, expressed by the words: "I am the Lord thy God," etc. (Exodus 20:1). Or else, it is forbidden by the words: "Thou shalt not take the name of . . . God in vain" (Exodus 20:7). Because he who asserts something false about God, takes His name in vain even more than he who uses the name of God in confirmation of a falsehood.

Reply to Objection 3. There are two ways in which blasphemy may occur unawares and without deliberation. On the first way, by a man failing to advert to the blasphemous nature of his words, and this may happen through his being moved suddenly by passion so as to break out into words suggested by his imagination, without heeding to the meaning of those words: this is a venial sin, and is not a blasphemy properly so called. On the second way, by adverting to the meaning of his words, and to their blasphemous nature: in which case he is not excused from mortal sin, even as neither is he who, in a sudden movement of anger, kills one who is sitting beside him.


Whether the sin of blasphemy is the greatest sin?

Objection 1. It would seem that the sin of blasphemy is not the greatest sin. For, according to Augustine (Enchiridion xii), a thing is said to be evil because it does harm. Now the sin of murder, since it destroys a man's life, does more harm than the sin of blasphemy, which can do no harm to God. Therefore the sin of murder is more grievous than that of blasphemy.

Objection 2. Further, a perjurer calls upon God to witness to a falsehood, and thus seems to assert that God is false. But not every blasphemer goes so far as to say that God is false. Therefore perjury is a more grievous sin than blasphemy.

Objection 3. Further, on Psalm 74:6, "Lift not up your horn on high," a gloss says: "To excuse oneself for sin is the greatest sin of all." Therefore blasphemy is not the greatest sin.

On the contrary, On Isaiah 18:2, "To a terrible people," etc. a gloss says: "In comparison with blasphemy, every sin is slight."

I answer that, As stated above (Article 1), blasphemy is opposed to the confession of faith, so that it contains the gravity of unbelief: while the sin is aggravated if the will's detestation is added thereto, and yet more, if it breaks out into words, even as love and confession add to the praise of faith.

Therefore, since, as stated above (II-II:10:3), unbelief is the greatest of sins in respect of its genus, it follows that blasphemy also is a very great sin, through belonging to the same genus as unbelief and being an aggravated form of that sin.

Reply to Objection 1. If we compare murder and blasphemy as regards the objects of those sins, it is clear that blasphemy, which is a sin committed directly against God, is more grave than murder, which is a sin against one's neighbor. On the other hand, if we compare them in respect of the harm wrought by them, murder is the graver sin, for murder does more harm to one's neighbor, than blasphemy does to God. Since, however, the gravity of a sin depends on the intention of the evil will, rather than on the effect of the deed, as was shown above (I-II:73:8), it follows that, as the blasphemer intends to do harm to God's honor, absolutely speaking, he sins more grievously that the murderer. Nevertheless murder takes precedence, as to punishment, among sins committed against our neighbor.

Reply to Objection 2. A gloss on the words, "Let . . . blasphemy be put away from you" (Ephesians 4:31) says: "Blasphemy is worse than perjury." The reason is that the perjurer does not say or think something false about God, as the blasphemer does: but he calls God to witness to a falsehood, not that he deems God a false witness, but in the hope, as it were, that God will not testify to the matter by some evident sign.

Reply to Objection 3. To excuse oneself for sin is a circumstance that aggravates every sin, even blasphemy itself: and it is called the most grievous sin, for as much as it makes every sin more grievous.