10 For godly sorrow produces a reformation to salvation, never to be repented of; but the sorrow of the world produces death.

11 Behold, now, this very thing-your being made sorry with a godly sorrow-what carefulness it wrought in you; yes, what clearing of yourselves; yes, what indignation; yes, what fear; yes, what earnest desire; yes, what zeal; yes, what revenge! Upon the whole, you have showed yourselves to be pure in this matter.