Romans 4:15-19

for the Law brings about wrath, but where there is no law, there also is no violation.

For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all,

(as it is written: “I have made you a father of many nations”) in the presence of Him whom he believed, that is, God, who gives life to the dead and calls into being things that do not exist.

In hope against hope he believed, so that he might become a father of many nations according to that which had been spoken, “So shall your descendants be.”

Without becoming weak in faith he contemplated his own body, now as good as dead since he was about a hundred years old, and the deadness of Sarah’s womb;