19. God said, “No. Sarah your wife will have a son, and you will name him Isaac. I will make my agreement with him. It will be an agreement that continues forever with all his descendants.
20. “You asked me about Ishmael, and I heard you. I will bless him. I will give him many descendants. And I will cause their numbers to grow very greatly. He will be the father of 12 great leaders. I will make him into a great nation.
21. But I will make my agreement with Isaac. He is the son whom Sarah will have at this same time next year.”
22. After God finished talking with Abraham, God rose and left him.
23. Then Abraham gathered Ishmael and all the males born in his camp. He also gathered the slaves he had bought. So that day Abraham circumcised every man and boy in his camp. This was what God had told him to do.
24. Abraham was 99 years old when he was circumcised.
25. And Ishmael, his son, was 13 years old when he was circumcised.
26. Abraham and his son were circumcised on that same day.
27. Also on that day all the men in Abraham’s camp were circumcised. This included all those born in his camp and all the slaves he had bought from other nations.