When Abram was 99 years old, the LORD appeared to Abram and said to him, "I am El Shaddai. Walk with me and be trustworthy.
References for Genesis 17:1
I will make a covenant between us and I will give you many, many descendants."
Abram fell on his face, and God said to him,
"But me, my covenant is with you; you will be the ancestor of many nations.
And because I have made you the ancestor of many nations, your name will no longer be Abram but Abraham.
References for Genesis 17:5
I will make you very fertile. I will produce nations from you, and kings will come from you.
I will set up my covenant with you and your descendants after you in every generation as an enduring covenant. I will be your God and your descendants' God after you.