Genesis 17:5-7

5No longer will you be called Abram Abram means exalted father. ; your name will be Abraham, Abraham probably means father of many. for I have made you a father of many nations. 6I will make you very fruitful; I will make nations of you, and kings will come from you. 7I will establish my covenant as an everlasting covenant between me and you and your descendants after you for the generations to come, to be your God and the God of your descendants after you.