Romans 9:6-8

21st Century King James Version

⁶ It is not as though the Word of God hath taken no effect. For they are not all Israel, who 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 who are the children of the flesh, these are not the children of God; rather, the children of the promise are counted as the seed.