“Seeing the city, [Jesus] wept over it, saying, ‘If only at least you had known.’ ” He did this once when he proclaimed that [Jerusalem] would perish. Our Redeemer has not stopped doing this daily through his elect when he observes that certain persons have adopted corrupt habits after having lived good lives. He mourns for those who do not know why they are mourned for, who, in Solomon’s words, “rejoice in doing evil, and delight in what is worse.” If they recognized their impending condemnation, they would mourn for themselves!
Who rejoice when they have done evil, etc. Therefore, they who do evil rejoice because they walk in dark ways and do not know where they are going. For if they saw that they were heading toward punishments, they would certainly restrain their step and correct their harmful joy with wholesome weeping.
[AD 604] Gregory the Dialogist on Proverbs 2:14