מְכַסֶּ֣ה פְ֭שָׁעָיו לֹ֣א יַצְלִ֑יחַ וּמוֹדֶ֖ה וְעֹזֵ֣ב יְרֻחָֽם׃
He that covereth his transgressions shall not prosper; But whoso confesseth and forsaketh them shall obtain mercy.
Rashi on Proverbs
but he who confesses and abandons He confesses his sins and abandons them, never to return to them.