2 Corinthians 7
8 Ref For though my letter gave you pain, I have no regret for it now, though I had before; for I see that the letter gave you pain, but only for a time.
9 Ref Now I am glad, not that you had sorrow, but that your sorrow was the cause of a change of heart; for yours was a holy sorrow so that you might undergo no loss by us in anything.
10 Ref 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.