Genesis 17
7 Ref And I will make between me and you and your seed after you through all generations, an eternal agreement to be a God to you and to your seed after you.
8 Ref And to you and to your seed after you, I will give the land in which you are living, all the land of Canaan for an eternal heritage; and I will be their God.
9 Ref And God said to Abraham, On your side, you are to keep the agreement, you and your seed after you through all generations.
10 Ref And this is the agreement which you are to keep with me, you and your seed after you: every male among you is to undergo circumcision.