10 For godly sorrow works repentance to salvation not to be regretted: but the sorrow of the world works death.

11 For behold this same thing, that you sorrowed after a godly sort, what earnestness it worked in you, yea, what clearing of yourselves, yea, what indignation, yea, what fear, yea, what vehement desire, yea, what zeal, yea, what full punishment! In all things you have proved yourselves to be pure in this matter.