Genesis 17
God christens Abram as Abraham. It was God's plan that through Abraham, Christ would come and all the nations of the world would believe in Him, this is what it means for Abraham to become a father of many nations.
Circumcision is given as a sign of the covenant. To become a Jew, you had to be circumcised. There is a physical and spiritual side to the Abrahamic Covenant. The Mosaic Covenant and the New Covenant both relate to the Abrahamic Covenant.
Paul's argument in Romans 4 is that Christians enjoy the blessings of the Abrahamic Covenant, in the New Covenant, through faith alone, citing the fact that Abraham was justified before he was circumcised through faith alone, thus circumcision is not necessary for Christians to enjoy the blessings of the Abrahamic Covenant.
For the Jews, one could not be a part of the Mosaic Covenant unless one was circumcised, thus one could not be a son of a Abraham and enjoy the benefits of the Abrahamic Covenant unless they were circumcised. Circumcision was necessary. It's easy to see why the Judaizers would find so many followers in the Apostolic Church.
God also christens Sarai as Sarah and says she will be a mother of nations. Paul in Galatians 4 says that Christians are born of the free woman, Sarah. She is the matriarch of those who believe, just as Abraham is the patriarch of those who believe.
God christens Abram as Abraham. It was God's plan that through Abraham, Christ would come and all the nations of the world would believe in Him, this is what it means for Abraham to become a father of many nations.
Circumcision is given as a sign of the covenant. To become a Jew, you had to be circumcised. There is a physical and spiritual side to the Abrahamic Covenant. The Mosaic Covenant and the New Covenant both relate to the Abrahamic Covenant.
Paul's argument in Romans 4 is that Christians enjoy the blessings of the Abrahamic Covenant, in the New Covenant, through faith alone, citing the fact that Abraham was justified before he was circumcised through faith alone, thus circumcision is not necessary for Christians to enjoy the blessings of the Abrahamic Covenant.
For the Jews, one could not be a part of the Mosaic Covenant unless one was circumcised, thus one could not be a son of a Abraham and enjoy the benefits of the Abrahamic Covenant unless they were circumcised. Circumcision was necessary. It's easy to see why the Judaizers would find so many followers in the Apostolic Church.
God also christens Sarai as Sarah and says she will be a mother of nations. Paul in Galatians 4 says that Christians are born of the free woman, Sarah. She is the matriarch of those who believe, just as Abraham is the patriarch of those who believe.
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