Rom 4:24

“Note that Paul does not speak of those who believe that God is supreme, or of those who believe that he made heaven and earth, or of those who believe that he made the angels and the other hosts of the heavenly glory. Rather, he speaks of those who believe in the God who raised Jesus Christ from the dead. Did Abraham believe in this God even before he had raised Jesus?… Abraham's faith contained within it the form and image of this great mystery. For when he was ordered to sacrifice his only son, he believed that God could raise him up from the dead. Moreover, he did not believe this of Isaac only but also of his seed, which is Christ.”

“We are meant to imitate Abraham's example as if he were our father, just as we imitate the examples of the saints, by which they pleased the Lord. They were tempted so that they might know themselves and so that we might follow them. We shall benefit if we believe as completely that God has raised Christ from the dead as Abraham believed that his body, which was as good as dead, could be made alive in order to produce children.”

“Second, at if we believe in him, he shows a likeness in faith. For what was reckoned as justice was Abraham's faith in believing that his body, as good as dead, and the barren womb of Sarah could be vivified for procreating children. It shall be reputed also to us if we believe in him that raised up Jesus Christ, our Lord, from the dead and in God the Father, to whom he says in a psalm: but do you, O Lord, be gracious to me and raise me up (Ps 41:10). And because the power of the Father and of the Son is the same, he also rose by his own power. That this faith justifies is shown below: if you confess with your mouth the Lord Jesus and believe in your heart that God has raised him up from the dead, you shall be saved (Rom 10:9).”

“Although what is now believed is different, faith has one and the same gift. Therefore we receive this gift because we believe. And believing that Christ is the Son of God, we are adopted as sons, for God could give no greater gift to believers than to call them sons of God once they had renounced their sins. For we are called "sons of God," but they are not worthy even to be called servants.”