^{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.