When Abram was 99 years old, the LORD appeared to him. He said, "I am the Mighty God. Walk with me and live without any blame.
References for Genesis 17:1
I will now put into practice my covenant between me and you. I will greatly increase your numbers."
Abram fell with his face to the ground. God said to him,
"As for me, this is my covenant with you. You will be the father of many nations.
"You will not be called Abram anymore. Your name will be Abraham, because I have made you a father of many nations.
I will give you many children. Nations will come from you. And kings will come from you.