Gal 3:6-9

6Just as Abraham “believed God, and it was reckoned to him as righteousness,”7so, you see, those who believe are the descendants of Abraham.8And the scripture, foreseeing that God would justify the Gentiles by faith, declared the gospel beforehand to Abraham, saying, “All the Gentiles shall be blessed in you.”9For this reason, those who believe are blessed with Abraham who believed.