Consult the Bible

For what saith the scripture? And Abraham believed God, and it was reckoned unto him for righteousness. Romans 4.3

Is this blessing then pronounced upon the circumcision, or upon the uncircumcision also? for we say, To Abraham his faith was reckoned for righteousness. Romans 4.9

and the father of circumcision to them who not only are of the circumcision, but who also walk in the steps of that faith of our father Abraham which he had in uncircumcision. Romans 4.12

For not through the law was the promise to Abraham or to his seed that he should be heir of the world, but through the righteousness of faith. Romans 4.13

For this cause of faith, that according to grace to the end that the promise may be sure to all the seed not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all Romans 4.16

neither, because they are Abraham's seed, are they all children: but, In Isaac shall thy seed be called. Romans 9.7

I say then, Did God cast off his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin. Romans 11.1

Are they Hebrews? so am I. Are they Israelites? so am I. Are they the seed of Abraham? so am I. 2 Corinthians 11.22

Even as Abraham believed God, and it was reckoned unto him for righteousness. Galatians 3.6

Know therefore that they that are of faith, the same are sons of Abraham. Galatians 3.7

And the scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand unto Abraham, In thee shall all the nations be blessed. Galatians 3.8

So then they that are of faith are blessed with the faithful Abraham. Galatians 3.9

that upon the Gentiles might come the blessing of Abraham in Christ Jesus that we might receive the promise of the Spirit through faith. Galatians 3.14

Now to Abraham were the promises spoken, and to his seed. He saith not, And to seeds, as of many but as of one, And to thy seed, which is Christ. Galatians 3.16

For if the inheritance is of the law, it is no more of promise: but God hath granted it to Abraham by promise. Galatians 3.18

And if ye are Christ's, then are ye Abraham's seed, heirs according to promise. Galatians 3.29

For it is written, that Abraham had two sons, one by the handmaid, and one by the freewoman. Galatians 4.22

For verily not to angels doth he give help, but he giveth help to the seed of Abraham. Hebrews 2.16

For when God made promise to Abraham, since he could swear by none greater, he sware by himself, Hebrews 6.13

For this Melchizedek, king of Salem, priest of God Most High, who met Abraham returning from the slaughter of the kings and blessed him, Hebrews 7.1