19. And God said, “No, but Sarah your wife shall bear a son for you, and you shall call his name Isaac. And I will establish my covenant with him as an everlasting covenant to his offspring after him.
20. And as for Ishmael, I have heard you. Behold, I will bless him and I will make him fruitful, and I will multiply him exceedingly. He shall father twelve princes, and I will make him a great nation.
21. But my covenant I will establish with Isaac, whom Sarah shall bear to you at this appointed time next year.”
22. When he finished speaking with him, God went up from Abraham.
23. And Abraham took Ishmael his son and all who were born of his house, and all those acquired by his money, every male among the men of Abraham’s house, and he circumcised the flesh of their foreskin on the same day that God spoke with him.
24. Abraham was ninety-nine years old when he circumcised the flesh of his foreskin.
25. And Ishmael his son was thirteen years old when he circumcised the flesh of his foreskin.