Romans 9:7-9

Wycliffe Bible

⁷ Neither they that be [the] seed of Abraham, all be sons; but in Isaac the seed shall be called to thee;

⁸ that is to say, not they that be sons of the flesh, be sons of God, but they that be sons of [the] promise be deemed in the seed.

⁹ For why this is the word of promise, After this time I shall come, and a son shall be to Sarah.