Genesis 17:21-23

World English Bible

²¹ But I will establish my covenant with Isaac, whom Sarah will bear to you at this set time next year.”

²² When he finished talking with him, God went up from Abraham. ²³ Abraham took Ishmael his son, all who were born in his house, and all who were bought with his money: every male among the men of Abraham’s house, and circumcised the flesh of their foreskin in the same day, as God had said to him.