Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham’s offspring— not only to those who are of the law but also to those who have the faith of Abraham. He is the father of us all. (niv)
And he received circumcision as a sign, a seal of the righteousness that he had by faith while he was still uncircumcised. So then, he is the father of all who believe but have not been circumcised, in order that righteousness might be credited to them. (niv)
Understand, then, that those who have faith are children of Abraham.Scripture foresaw that God would justify the Gentiles by faith, and announced the gospel in advance to Abraham:“ All nations will be blessed through you.” (niv)
He redeemed us in order that the blessing given to Abraham might come to the Gentiles through Christ Jesus, so that by faith we might receive the promise of the Spirit. (niv)