20. And for Ishmael I have heard thee: behold, I will bless him, and will make him fruitful, and will very greatly multiply him; twelve princes shall he beget, and I will make him a great nation.
21. But my covenant will I establish with Isaac, whom Sarah shall bear to thee at this appointed time in the next year.
22. And he left off talking with him; and God went up from Abraham.
23. And Abraham took Ishmael his son, and all who were born in his house, and all who were bought with his money--every male among the people of Abraham's house--and circumcised the flesh of their foreskin on that same day, as God had said to him.
24. And Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin.
25. And Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin.
26. In the selfsame day was Abraham circumcised, and Ishmael his son;