Whether the forgiveness of mortal sin is an effect of this sacrament?

❌ Objection 1 : It seems that the forgiveness of mortal sin is an effect of this sacrament. For it is said in one of the Collects (Postcommunion, Pro vivis et defunctis): "May this sacrament be a cleansing from crimes." But mortal sins are called crimes. Therefore mortal sins are blotted out by this sacrament.

❌ Objection 2 : Further, this sacrament, like Baptism, works by the power of Christ's Passion. But mortal sins are forgiven by Baptism, as stated above (Question [69], Article [1]). Therefore they are forgiven likewise by this sacrament, especially since in the form of this sacrament it is said: "Which shall be shed for many unto the forgiveness of sins."

❌ Objection 3 : Further, grace is bestowed through this sacrament, as stated above (Article [1]). But by grace a man is justified from mortal sins, according to Rm. 3:24: "Being justified freely by His grace." Therefore mortal sins are forgiven by this sacrament.