7I will keep My covenant between Me and you, and your future offspring throughout their generations, as an everlasting covenant to be your God and the God of your offspring after you.
8And to you and your future offspring I will give the land where you are residing--all the land of Canaan--as an eternal possession, and I will be their God."
12Throughout your generations, every male among you at eight days old is to be circumcised. This includes a slave born in your house and one purchased with money from any foreigner. The one who is not your offspring,
13a slave born in your house, as well as one purchased with money, must be circumcised. My covenant will be marked in your flesh as an everlasting covenant.
17Abraham fell facedown. Then he laughed and said to himself, "Can a child be born to a hundred-year-old man? Can Sarah, a ninety-year-old woman, give birth?"
19But God said, "No. Your wife Sarah will bear you a son, and you will name him Isaac. I will confirm My covenant with him as an everlasting covenant for his future offspring.
20As for Ishmael, I have heard you. I will certainly bless him; I will make him fruitful and will multiply him greatly. He will father 12 tribal leaders, and I will make him into a great nation.
23Then Abraham took his son Ishmael and all the slaves born in his house or purchased with his money--every male among the members of Abraham's household--and he circumcised the flesh of their foreskin on that very day, just as God had said to him.
