2 Corinthians 7:7-10

7and not by his coming only, but also by the comfort wherewith he was comforted in you, while he told us your longing, your mourning, your zeal for me; so that I rejoiced yet more. 8For though I made you sorry with my epistle, I do not regret it: though I did regret it (for I see that that epistle made you sorry, though but for a season), 9I now rejoice, not that ye were made sorry, but that ye were made sorry unto repentance; for ye were made sorry after a godly sort, that ye might suffer loss by us in nothing. 10For godly sorrow worketh repentance unto salvation, a repentance which bringeth no regret: but the sorrow of the world worketh death.