Provérbios 19

Provérbios 19:25

If you want to take Scripture as a witness that sinners are punished for the education of others, even if those unabashed may be beyond treatment, hear Solomon in the Proverbs who says, "When a pest is being whipped, the fool will be more astute." He did not say that he who is being whipped will be more astute and more sensible through the whips, but he said that the fool will change from foolishness into common sense through whips employed on the pest. For this is signified here by the term astute, and the fool changes because he sees others who are whipped. Hence the punishment of others is useful for us if we learn greater readiness for salvation through others who are punished. — HOMILIES ON JEREMIAH 12:6