1When Abram was 99 years old, the LORD appeared to Abram and announced, "I am God Almighty. Live in constant awareness that I'm always with you, and be blameless.
7I'm establishing my covenant between me and you, and with your descendants who come after you, generation after generation, as an eternal covenant, to be your God and your descendants' God after you.
9God continued to speak to Abraham, "You and your descendants who are born in the future are to keep my covenant—that is, you and your descendants, generation after generation.
12Generation after generation, every male among you is to be circumcised on the eighth day after his birth, including the servant born in your house or the one purchased from a foreigner, who is not of your offspring.
14Any uncircumcised male who does not have the foreskin of his flesh circumcised on the eighth day after his birth is to be eliminated from his people because he has broken my covenant."
19But God replied, "No, but your wife Sarah will give birth to your son, and you are to name him Isaac. I'll confirm my covenant with him as an eternal covenant for his descendants.
20And as for Ishmael, I've heard you. I'll bless him, and he'll have many descendants. I will multiply him greatly, he'll father twelve tribal leaders, and I'll cause his descendants to become a great nation.
23Abraham took his son Ishmael and all the servants born in his house or purchased with his money—every male among the men of his household—and circumcised them that very day, just as God had spoken to him.