For wisdom will not enter into a malicious soul, nor dwell in a body subject to sins.

“The soul whose life is in God will find its pleasure in none of those things that are deceptively presented as something good. If that soul allows its heart to be defiled by one passion, at the same time it breaks the covenant of its spiritual marriage. And, as it says in Scripture, "Wisdom cannot enter the soul that does evil." It may, in a word, be truly said that the good spouse cannot come to live with a soul that is irascible or full of malice or that harbors any other similar defect.”

“Do ye not see that malice is blind? Have ye never heard, that he that diggeth a pit for his neighbors, diggeth it for himself? How, it may be said, ought we not to fear a soul full of tumult? If indeed we are to fear the bitter in the same way as we fear evil spirits, and fools and madmen, (for they indeed do everything at random,) I grant it myself; but if we are to fear them as men skillful in the conduct of affairs, that never. For nothing is so necessary for the proper conduct of affairs as prudence; and there is no greater hindrance to prudence than wickedness, and malice, and hollowness. Look at bilious persons, how unsightly they are, with all their bloom withered away. How weak they are, and puny, and unfit for anything. So also are souls of this nature. What else is wickedness, but a jaundice of the soul? Wickedness then has no strength in it, indeed it has not. Jacob was a guileless man, yet he overcame the treacherous Esau. "For into a malicious soul wisdom shall not enter." "Let all bitterness be put away from you." Let not even a remnant remain, for it will be sure, if stirred, as if from a smouldering brand, to turn all within to an entire blaze.”

“"Wisdom dwelleth not in the soul which worketh deceitfully in wickedness", saith Solomon the wise man, and knowledge of the Spirit sojourneth not in the body which is conquered of sin; for the soul which worketh deceitfully in wickedness is full of cunning, because cunning itself is the inventor of wickedness. Whosoever desireth to serve his lusts runneth to become a disciple of cunning, so that with the learning which ariseth therefrom, and with the deceits of iniquity which it sheweth to him he may find means whereby to cover his wickedness, and to make an excuse for the hateful things which are wrought by him.”

“Because into a malevolent, etc. That is, into the animal man, according to that saying: The animal man does not perceive, etc. And therefore he did not say the spirit, that is, the spiritual soul. In vain do philosophers, and heretics, and false Christians flatter themselves. For only the clean of heart can receive the wisdom of God.”