Does not the Sacrament of Penance remit all punishment due to sin?
A. The Sacrament of Penance remits the eternal punishment due to sin, but it does not always remit the temporal punishment which God requires as satisfaction for our sins. Q. 804. Why does God require a temporal punishment as a satisfaction for sin? A. God requires a temporal punishment as a satisfaction for sin to teach us the great evil of sin and to prevent us from falling again. Q. 805. Which are the chief means by which we satisfy God for the temporal punishment due to sin? A. The chief means by which we satisfy God for the temporal punishment due to sin are: Prayer, Fasting, Almsgiving; all spiritual and corporal works of mercy, and the patient suffering of the ills of life. Here’s how the teaching is put in the Catechism of the Catholic Church: 1472 To understand this doctrine and practice of the Church, it is necessary to understand that sin has a double consequence. Grave sin deprives us of communion with God and therefore makes us incapable of eternal life, the privation of w