Part II (Pars Prima Secundae) Part 138 (1/2)

Consequently a sin may be called venial, first of all, because it has been pardoned: thus Ambrose says that ”penance makes every sin venial”: and this is called venial ”from the result.” Secondly, a sin is called venial because it does not contain anything either partially or totally, to prevent its being pardoned: partially, as when a sin contains something diminis.h.i.+ng its guilt, e.g. a sin committed through weakness or ignorance: and this is called venial ”from the cause”: totally, through not destroying the order to the last end, wherefore it deserves temporal, but not everlasting punishment. It is of this venial sin that we wish to speak now.

For as regards the first two, it is evident that they have no determinate genus: whereas venial sin, taken in the third sense, can have a determinate genus, so that one sin may be venial generically, and another generically mortal, according as the genus or species of an act is determined by its object. For, when the will is directed to a thing that is in itself contrary to charity, whereby man is directed to his last end, the sin is mortal by reason of its object.

Consequently it is a mortal sin generically, whether it be contrary to the love of G.o.d, e.g. blasphemy, perjury, and the like, or against the love of one's neighbor, e.g. murder, adultery, and such like: wherefore such sins are mortal by reason of their genus. Sometimes, however, the sinner's will is directed to a thing containing a certain inordinateness, but which is not contrary to the love of G.o.d and one's neighbor, e.g. an idle word, excessive laughter, and so forth: and such sins are venial by reason of their genus.

Nevertheless, since moral acts derive their character of goodness and malice, not only from their objects, but also from some disposition of the agent, as stated above (Q. 18, AA. 4, 6), it happens sometimes that a sin which is venial generically by reason of its object, becomes mortal on the part of the agent, either because he fixes his last end therein, or because he directs it to something that is a mortal sin in its own genus; for example, if a man direct an idle word to the commission of adultery. In like manner it may happen, on the part of the agent, that a sin generically mortal because venial, by reason of the act being imperfect, i.e. not deliberated by reason, which is the proper principle of an evil act, as we have said above in reference to sudden movements of unbelief.

Reply Obj. 1: The very fact that anyone chooses something that is contrary to divine charity, proves that he prefers it to the love of G.o.d, and consequently, that he loves it more than he loves G.o.d. Hence it belongs to the genus of some sins, which are of themselves contrary to charity, that something is loved more than G.o.d; so that they are mortal by reason of their genus.

Reply Obj. 2: This argument considers those sins which are venial from their cause.

Reply Obj. 3: This argument considers those sins which are venial by reason of the imperfection of the act.

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THIRD ARTICLE [I-II, Q. 88, Art. 3]

Whether Venial Sin Is a Disposition to Mortal Sin?

Objection 1: It would seem that venial sin is not a disposition to mortal sin. For one contrary does not dispose to another. But venial and mortal sin are condivided as contrary to one another, as stated above (A. 1). Therefore venial sin is not a disposition to mortal sin.

Obj. 2: Further, an act disposes to something of like species, wherefore it is stated in _Ethic._ ii, 1, 2, that ”from like acts like dispositions and habits are engendered.” But mortal and venial sin differ in genus or species, as stated above (A. 2). Therefore venial sin does not dispose to mortal sin.

Obj. 3: Further, if a sin is called venial because it disposes to mortal sin, it follows that whatever disposes to mortal sin is a venial sin. Now every good work disposes to mortal sin; wherefore Augustine says in his Rule (Ep. ccxi) that ”pride lies in wait for good works that it may destroy them.” Therefore even good works would be venial sins, which is absurd.

_On the contrary,_ It is written (Ecclus. 19:1): ”He that contemneth small things shall fall by little and little.” Now he that sins venially seems to contemn small things. Therefore by little and little he is disposed to fall away together into mortal sin.

_I answer that,_ A disposition is a kind of cause; wherefore as there is a twofold manner of cause, so is there a twofold manner of disposition. For there is a cause which moves directly to the production of the effect, as a hot thing heats: and there is a cause which moves indirectly, by removing an obstacle, as he who displaces a pillar is said to displace the stone that rests on it. Accordingly an act of sin disposes to something in two ways. First, directly, and thus it disposes to an act of like species. In this way, a sin generically venial does not, primarily and of its nature, dispose to a sin generically mortal, for they differ in species. Nevertheless, in this same way, a venial sin can dispose, by way of consequence, to a sin which is mortal on the part of the agent: because the disposition or habit may be so far strengthened by acts of venial sin, that the l.u.s.t of sinning increases, and the sinner fixes his end in that venial sin: since the end for one who has a habit, as such, is to work according to that habit; and the consequence will be that, by sinning often venially, he becomes disposed to a mortal sin.

Secondly, a human act disposes to something by removing an obstacle thereto. In this way a sin generically venial can dispose to a sin generically mortal. Because he that commits a sin generically venial, turns aside from some particular order; and through accustoming his will not to be subject to the due order in lesser matters, is disposed not to subject his will even to the order of the last end, by choosing something that is a mortal sin in its genus.

Reply Obj. 1: Venial and mortal sin are not condivided in contrariety to one another, as though they were species of one genus, as stated above (A. 1, ad 1), but as an accident is condivided with substance.

Wherefore an accident can be a disposition to a substantial form, so can a venial sin dispose to mortal.

Reply Obj. 2: Venial sin is not like mortal sin in species; but it is in genus, inasmuch as they both imply a defect of due order, albeit in different ways, as stated (AA. 1, 2).

Reply Obj. 3: A good work is not, of itself, a disposition to mortal sin; but it can be the matter or occasion of mortal sin accidentally; whereas a venial sin, of its very nature, disposes to mortal sin, as stated.

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FOURTH ARTICLE [I-II, Q. 88, Art. 4]

Whether a Venial Sin Can Become Mortal?

Objection 1: It would seem that a venial sin can become a mortal sin.

For Augustine in explaining the words of John 3:36: ”He that believeth not the Son, shall not see life,” says (Tract. xii in Joan.): ”The slightest,” i.e. venial, ”sins kill if we make little of them.” Now a sin is called mortal through causing the spiritual death of the soul. Therefore a venial sin can become mortal.

Obj. 2: Further, a movement in the sensuality before the consent of reason, is a venial sin, but after consent, is a mortal sin, as stated above (Q. 74, A. 8, ad 2). Therefore a venial sin can become mortal.

Obj. 3: Further, venial and mortal sin differ as curable and incurable disease, as stated above (A. 1). But a curable disease may become incurable. Therefore a venial sin may become mortal.

Obj. 4: Further, a disposition may become a habit. Now venial sin is a disposition to mortal, as stated (A. 3). Therefore a venial sin can become mortal.