The words from Hebrews allow us, as it were, to look into the unfathomable depths of this self-abasement of the Word incarnate, his humiliation of himself for the love of all humankind, even to death on the cross. The source and primary cause of our sanctification is the will of God, who so loved the world as to give us his only Son. The meritorious cause of our sanctification is the voluntary oblation of Jesus Christ, who sacrificed for us upon the cross. Saint Pope John Paul II speaks to the mystery of Christ’s willingness to sacrifice for us. “Why this obedience, this self-abasement, this suffering? The Creed gives us the answer: ‘for us men and for our salvation’ Jesus came down from heaven so as to give humankind full entitlement to ascend to heaven, and by becoming a son in the Son, to regain the dignity he lost through sin. Let us welcome Him. Let us say to him, ‘Here I am, Lord; I have come to do your will.'”