Romans 9:6-8

Darby Translation

⁶ Not however as though the word of God had failed; for not all [are] Israel which [are] of Israel;

⁷ nor because they are seed of Abraham [are] all children: but, In Isaac shall a seed be called to thee.

⁸ That is, [they that are] the children of the flesh, these [are] not the children of God; but the children of the promise are reckoned as seed.