Reply Obj. 3: Some say that no one may pretend to be wicked, because no one pretends to be wicked by doing good deeds, and if he do evil deeds, he is evil. But this argument proves nothing. Because a man might pretend to be evil, by doing what is not evil in itself but has some appearance of evil: and nevertheless this dissimulation is evil, both because it is a lie, and because it gives scandal; and although he is wicked on this account, yet his wickedness is not the wickedness he simulates. And because dissimulation is evil in itself, its sinfulness is not derived from the thing simulated, whether this be good or evil.
Reply Obj. 4: Just as a man lies when he signifies by word that which he is not, yet lies not when he refrains from saying what he is, for this is sometimes lawful; so also does a man dissemble, when by outward signs of deeds or things he signifies that which he is not, yet he dissembles not if he omits to signify what he is. Hence one may hide one's sin without being guilty of dissimulation. It is thus that we must understand the saying of Jerome on the words of Isa. 3:9, that the "second remedy after shipwreck is to hide one's sin," lest, to wit, others be scandalized thereby. _______________________
SECOND ARTICLE [II-II, Q. 111, Art. 2]
Whether Hypocrisy Is the Same As Dissimulation?
Objection 1: It seems that hypocrisy is not the same as dissimulation. For dissimulation consists in lying by deeds. But there may be hypocrisy in showing outwardly what one does inwardly, according to Matt. 6:2, "When thou dost an alms-deed sound not a trumpet before thee, as the hypocrites do." Therefore hypocrisy is not the same as dissimulation.
Obj. 2: Further, Gregory says (Moral. xxxi, 7): "Some there are who wear the habit of holiness, yet are unable to attain the merit of perfection. We must by no means deem these to have joined the ranks of the hypocrites, since it is one thing to sin from weakness, and another to sin from malice." Now those who wear the habit of holiness, without attaining the merit of perfection, are dissemblers, since the outward habit signifies works of perfection. Therefore dissimulation is not the same as hypocrisy.
Obj. 3: Further, hypocrisy consists in the mere intention. For our Lord says of hypocrites (Matt. 23:5) that "all their works they do for to be seen of men": and Gregory says (Moral. xxxi, 7) that "they never consider what it is that they do, but how by their every action they may please men." But dissimulation consists, not in the mere intention, but in the outward action: wherefore a gloss on Job 36:13, "Dissemblers and crafty men prove the wrath of God," says that "the dissembler simulates one thing and does another: he pretends chastity, and delights in lewdness, he makes a show of poverty and fills his purse." Therefore hypocrisy is not the same as dissimulation.
On the contrary, Isidore says (Etym. x): "'Hypocrite' is a Greek word corresponding to the Latin 'simulator,' for whereas he is evil within," he "shows himself outwardly as being good; hypo denoting falsehood, and krisis, judgment."
I answer that, As Isidore says (Etym. x), "the word hypocrite is derived from the appearance of those who come on to the stage with a disguised face, by changing the color of their complexion, so as to imitate the complexion of the person they simulate, at one time under the guise of a man, at another under the guise of a woman, so as to deceive the people in their acting." Hence Augustine says (De Serm. Dom. ii) that "just as hypocrites by simulating other persons act the parts of those they are not (since he that acts the part of Agamemnon is not that man himself but pretends to be), so too in the Church and in every department of human life, whoever wishes to seem what he is not is a hypocrite: for he pretends to be just without being so in reality."
We must conclude, therefore, that hypocrisy is dissimulation, not, however, any form of dissimulation, but only when one person simulates another, as when a sinner simulates the person of a just man.