Romans 9

6 “Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel:

7 Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

8 That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.

Galatians 3

26 “For ye are all the children of God by faith in Christ Jesus.

27 For as many of you as have been baptized into Christ have put on Christ.

28 There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.

29 And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise.