NET
10 For sadness as intended by God produces a repentance that leads to salvation, leaving no regret, but worldly sadness brings about death.
Darby
10 For grief according to God works repentance to salvation, never to be regretted; but the grief of the world works death.
KJV
10 For godly sorrow worketh repentance to salvation not to be repented of: but the sorrow of the world worketh death.