Romans 9:7 WEB

⁵  of whom are the fathers, and from whom is Christ as concerning the flesh, who is over all, God, blessed forever. Amen.

⁶  But it is not as though the word of God has come to nothing. For they are not all Israel, that are of Israel.

⁷  Neither, because they are Abraham's seed, are they all children. But, 'In Isaac will your seed be called.'

⁸  That is, it is not the children of the flesh who are children of God, but the children of the promise are counted as a seed.

⁹  For this is a word of promise, 'At the appointed time I will come, and Sarah will have a son.'