Thus Abraham “believed God, and it was reckoned to him as righteousness.” So you see that it is men of faith who are the sons of Abraham. And the scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, “In you shall all the nations be blessed.” So then, those who are men of faith are blessed with Abraham who had faith.
–Galatians 3:6-9