CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 602–606

602 Consequently, St. Peter can formulate the apostolic faith in the divine plan of salvation in this way: "You were ransomed from the futile ways inherited from your fathers... with the precious blood of Christ, like that of a lamb without blemish or spot. He was destined before the foundation of the world but was made manifest at the end of the times for your sake." Man's sins, following on original sin, are punishable by death. By sending his own Son in the form of a slave, in the form of a fallen humanity, on account of sin, God "made him to be sin who knew no sin, so that in him we might become the righteousness of God."
603 Jesus did not experience reprobation as if he himself had sinned. But in the redeeming love that always united him to the Father, he assumed us in the state of our waywardness of sin, to the point that he could say in our name from the cross: "My God, my God, why have you forsaken me?" Having thus established him in solidarity with us sinners, God "did not spare his own Son but gave him up for us all", so that we might be "reconciled to God by the death of his Son".
604 By giving up his own Son for our sins, God manifests that his plan for us is one of benevolent love, prior to any merit on our part: "In this is love, not that we loved God but that he loved us and sent his Son to be the expiation for our sins." God "shows his love for us in that while we were yet sinners Christ died for us."
605 At the end of the parable of the lost sheep Jesus recalled that God's love excludes no one: "So it is not the will of your Father who is in heaven that one of these little ones should perish." He affirms that he came "to give his life as a ransom for many"; this last term is not restrictive, but contrasts the whole of humanity with the unique person of the redeemer who hands himself over to save us. The Church, following the apostles, teaches that Christ died for all men without exception: "There is not, never has been, and never will be a single human being for whom Christ did not suffer."
606 The Son of God, who came down "from heaven, not to do [his] own will, but the will of him who sent [him]", said on coming into the world, "Lo, I have come to do your will, O God." "And by that will we have been sanctified through the offering of the body of Jesus Christ once for all." From the first moment of his Incarnation the Son embraces the Father's plan of divine salvation in his redemptive mission: "My food is to do the will of him who sent me, and to accomplish his work." The sacrifice of Jesus "for the sins of the whole world" expresses his loving communion with the Father. "The Father loves me, because I lay down my life", said the Lord, "[for] I do as the Father has commanded me, so that the world may know that I love the Father."