Genesis 17:4-14
As for me, behold, my covenant is with you, and you shall be a father of many nations.
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Acts 7:8
And he gave him the covenant of circumcision: and so Abraham begat Isaac, and circumcised him the eighth day; and Isaac begat Jacob; and Jacob begat the twelve patriarchs.
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Romans 3:1
What advantage then has the Jew? or what profit is there of circumcision?
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Romans 4:11
And he received the sign of circumcision, a seal of the righteousness of the faith which he had yet being uncircumcised: that he might be the father of all them that believe, though they be not circumcised; that righteousness might be imputed to them also:
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Romans 9:7-13
Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall your seed be called.
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Galatians 5:3
For I testify again to every man that is circumcised, that he is a debtor to do the whole law.
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