Q: Whether a Man Can Sin First of All Against the Holy Ghost?

A: On the contrary,
"It is easy in the eyes of God on a sudden to make a poor man rich" (Ecclus. 11:23). Therefore, conversely, it is possible for a man, according to the malice of the devil who tempts him, to be led to commit the most grievous of sins which is that against the Holy Ghost.

I answer that,
As stated above (A. 1), in one way, to sin against the Holy Ghost is to sin through certain malice. Now one may sin through certain malice in two ways, as stated in the same place: first, through the inclination of a habit; but this is not, properly speaking, to sin against the Holy Ghost, nor does a man come to commit this sin all at once, in as much as sinful acts must precede so as to cause the habit that induces to sin. Secondly, one may sin through certain malice, by contemptuously rejecting the things whereby a man is withdrawn from sin. This is, properly speaking, to sin against the Holy Ghost, as stated above (A. 1); and this also, for the most part, presupposes other sins, for it is written (Prov. 18:3) that "the wicked man, when he is come into the depth of sins, contemneth."

Nevertheless it is possible for a man, in his first sinful act, to sin against the Holy Ghost by contempt, both on account of his free-will, and on account of the many previous dispositions, or again, through being vehemently moved to evil, while but feebly attached to good. Hence never or scarcely ever does it happen that the perfect sin all at once against the Holy Ghost: wherefore Origen says (Peri Archon. i, 3): "I do not think that anyone who stands on the highest step of perfection, can fail or fall suddenly; this can only happen by degrees and bit by bit."

The same applies, if the sin against the Holy Ghost be taken literally for blasphemy against the Holy Ghost. For such blasphemy as Our Lord speaks of, always proceeds from contemptuous malice.

If, however, with Augustine (De Verb. Dom., Serm. lxxi) we understand the sin against the Holy Ghost to denote final impenitence, it does not regard the question in point, because this sin against the Holy Ghost requires persistence in sin until the end of life.

Reply Obj. 1: Movement both in good and in evil is made, for the most part, from imperfect to perfect, according as man progresses in good or evil: and yet in both cases, one man can begin from a greater (good or evil) than another man does. Consequently, that from which a man begins can be perfect in good or evil according to its genus, although it may be imperfect as regards the series of good or evil actions whereby a man progresses in good or evil.

Reply Obj. 2: This argument considers the sin which is committed through certain malice, when it proceeds from the inclination of a habit.

Reply Obj. 3: If by impenitence we understand with Augustine (De Verb. Dom., Serm. lxxi) persistence in sin until the end, it is clear that it presupposes sin, just as repentance does. If, however, we take it for habitual impenitence, in which sense it is a sin against the Holy Ghost, it is evident that it can precede sin: for it is possible for a man who has never sinned to have the purpose either of repenting or of not repenting, if he should happen to sin.

QUESTION 15

OF THE VICES OPPOSED TO KNOWLEDGE AND UNDERSTANDING (In Three Articles)

We must now consider the vices opposed to knowledge and understanding. Since, however, we have treated of ignorance which is opposed to knowledge, when we were discussing the causes of sins (I-II, Q. 76), we must now inquire about blindness of mind and dulness of sense, which are opposed to the gift of understanding; and under this head there are three points of inquiry:

(1) Whether blindness of mind is a sin?

(2) Whether dulness of sense is a sin distinct from blindness of mind?

(3) Whether these vices arise from sins of the flesh?