Catechism of the Catholic Church

Scripture witnesses to the disastrous influence of the one Jesus calls "a murderer from the beginning," who would even try to divert Jesus from the mission received from his Father. "The reason the Son of God appeared was to destroy the works of the devil." In its consequences the gravest of these works was the mendacious seduction that led man to disobey God. (538-540, 550, 2846-2849)