Romans 4:16-25

This is why the promise is by faith, so that it may be according to grace, to guarantee it to all the descendants — not only to those who are of the law but also to those who are of Abraham’s faith. He is the father of us all in God’s sight. As it is written: I have made you the father of many nations. He believed in God, who gives life to the dead and calls things into existence that do not exist. He believed, hoping against hope, so that he became the father of many nations according to what had been spoken: So will your descendants be. He considered his own body to be already dead (since he was about 100 years old) and also considered the deadness of Sarah’s womb, without weakening in the faith. He did not waver in unbelief at God’s promise but was strengthened in his faith and gave glory to God, because he was fully convinced that what He had promised He was also able to perform. Therefore, it was credited to him for righteousness. Now it was credited to him was not written for Abraham alone, but also for us. It will be credited to us who believe in Him who raised Jesus our Lord from the dead. He was delivered up for our trespasses and raised for our justification.