Whether confession delivers one from the death of sin?

Objections

Objection 1 : It would seem that confession does not deliver one from the death of sin. For confession follows contrition. But contrition sufficiently blots out guilt. Therefore confession does not deliver one from the death of sin.
Objection 2 : Further, just as mortal sin is a fault, so is venial. Now confession renders venial that which was mortal before, as stated in the text (Sent. iv, D, 17). Therefore confession does not blot out guilt, but one guilt is changed into another.