Jerome, on Titus 1:16

“They profess that they know God: but in their works they deny him; being abominable, and incredulous, and to every good work reprobate.”

“"They confess to know God, but deny Him with their deeds: abominable and disobedient, and disqualified for every good deed." Those whose mind and conscience are defiled confess to know God, but deny Him with their deeds, according to what is said in Isaiah: This people honors me with their lips, but their heart is far from me (Isaiah 29:13). Therefore, just as someone who honors with their lips but moves far away in heart, so anyone confessing God with their words but denying Him with his deeds is. But he who denies God with his deeds, and with a deceitful confession is rightly accursed and profane, and having no reasonable conviction of truth, he is called disobedient and incredulous. So it happens that he is disqualified for every good work: namely, that even those things which he may have done well, having been overcome by his own natural goodness, are not good, while they are corrupt by his distorted state of mind. Some think that only if someone, when captured by Gentiles during persecution, denies themselves as Christians that they would be denying God. But behold the Apostle asserts that God is denied by all perverse deeds. Christ is wisdom, justice, truth, holiness, and strength. Wisdom is denied through foolishness, justice through iniquity, truth through lies, holiness through depravity, and strength through weakness of the soul. And as often as we are overcome by vices and sins, we deny God. Conversely, as often as we do good, we confess God. And it is not to be judged that only those who denied Christ in martyrdom will be denied by the Son of God on the day of judgment, but in all works, words, and thoughts, Christ, either denied, denies or confessed, confesses. Regarding this confession, He commanded His disciples, saying, "You will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the end of the earth" (Acts 1:8), so that in all good works and words the mind dedicated to Christ may confess Him. There is also a commendable denial, of which the Apostle himself says: "As we deny impiety and worldly desires, we should live chastely, justly, and piously in the present age, while awaiting the blessed hope and coming of our God and Savior" (Titus 2:12). Whoever denies this denial and wants to follow the Savior speaking these words, "Whoever wishes to come after me, let him deny himself" (Luke 9:23), stripped of his old self with its works, and putting on the new, shall follow his God. But how one is to deny oneself must be considered. The chaste denies the fornicator he once was; the wise, the foolish; the just, the unjust; the brave, the weak. In general, we deny ourselves as often as we, trampling on our former vices, cease to be what we were and begin to be what we were not before.”

Imported from an open dataset — not yet checked against the printed edition.