Genesis 17:21-23

Modern English Version

²¹ But I will establish My covenant with Isaac, whom Sarah will bear to you at this set time next year.” ²² Then He stopped talking with Abraham, and God went up from him.

²³ Then Abraham took Ishmael, his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham’s household, and circumcised the flesh of their foreskins that very same day as God had said to him.