Genesis 17:5-9

17:5 No longer will your name be Abram. Instead, your name will be Abraham because I will make you the father of a multitude of nations. 17:6 I will make you extremely fruitful. I will make nations of you, and kings will descend from you. 17:7 I will confirm my covenant as a perpetual covenant between me and you. It will extend to your descendants after you throughout their generations. I will be your God and the God of your descendants after you. 17:8 I will give the whole land of Canaan – the land where you are now residing – to you and your descendants after you as a permanent possession. I will be their God.”

17:9 Then God said to Abraham, “As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations.