That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his offspring— not only to the adherent of the law but also to the one who shares the faith of Abraham, who is the father of us all,
He received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. The purpose was to make him the father of all who believe without being circumcised, so that righteousness would be counted to them as well,
Know then that it is those 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.”