12. And he that is eight days old shall be circumcised among you, every male-child in your generations, he that is born in the house, or bought with money of any stranger, who is not of thy seed.
13. He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
14. And the uncircumcised male-child, whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.
15. And God said to Abraham, As for Sarai thy wife, thou shalt not call her name Sarai, but Sarah shall her name be.
16. And I will bless her, and give thee a son also by her: yea, I will bless her, and she shall be a mother of nations; kings of people shall proceed from her.
17. Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born to him that is a hundred years old? and shall Sarah, who is ninety years old, bear?
18. And Abraham said to God, O that Ishmael might live before thee!