"I will keep my promise to you and to your descendants in future generations as an everlasting covenant. I will be your God and the God of your descendants.
I will give to you and to your descendants this land in which you are now a foreigner. The whole land of Canaan will belong to your descendants forever, and I will be their God."
From now on you must circumcise every baby boy when he is eight days old, including slaves born in your homes and slaves bought from foreigners. This will show that there is a covenant between you and me.
I will bless her, and I will give you a son by her. I will bless her, and she will become the mother of nations, and there will be kings among her descendants."
Abraham bowed down with his face touching the ground, but he began to laugh when he thought, "Can a man have a child when he is a hundred years old? Can Sarah have a child at ninety?"
But God said, "No. Your wife Sarah will bear you a son and you will name him Isaac. I will keep my covenant with him and with his descendants forever. It is an everlasting covenant.
I have heard your request about Ishmael, so I will bless him and give him many children and many descendants. He will be the father of twelve princes, and I will make a great nation of his descendants.
On that same day Abraham obeyed God and circumcised his son Ishmael and all the other males in his household, including the slaves born in his home and those he had bought.