5 What’s more, I am changing your name. It will no longer be Abram. Instead, you will be called Abraham,17:5 Abram means "exalted father"; Abraham sounds like a Hebrew term that means "father of many." for you will be the father of many nations.
10 This is the covenant that you and your descendants must keep: Each male among you must be circumcised.
16 And I will bless her and give you a son from her! Yes, I will bless her richly, and she will become the mother of many nations. Kings of nations will be among her descendants."
17 Then Abraham bowed down to the ground, but he laughed to himself in disbelief. "How could I become a father at the age of 100?" he thought. "And how can Sarah have a baby when she is ninety years old?"
19 But God replied, "No—Sarah, your wife, will give birth to a son for you. You will name him Isaac,17:19 Isaac means "he laughs." and I will confirm my covenant with him and his descendants as an everlasting covenant.
23 On that very day Abraham took his son, Ishmael, and every male in his household, including those born there and those he had bought. Then he circumcised them, cutting off their foreskins, just as God had told him.