10 For the sorrow which God gives is the cause of salvation through a change of heart, in which there is no reason for grief: but the sorrow of the world is a cause of death.

11 For you see what care was produced in you by this very sorrow of yours before God, what clearing of yourselves, what wrath against sin, what fear, what desire, what serious purpose, what punishment. In everything you have made it clear that you are free from sin in this business.