When Abram was 99 years old, the Lord appeared to him, saying, "I am God Almighty. Live in My presence and be devout.
References for Genesis 17:1
I will establish My covenant between Me and you, and I will multiply you greatly."
Then Abram fell to the ground, and God spoke with him:
References for Genesis 17:3
"As for Me, My covenant is with you, and you will become the father of many nations.
References for Genesis 17:4
Your name will no longer be Abram, but your name will be Abraham, for I will make you the father of many nations.
References for Genesis 17:5
I will make you extremely fruitful and will make nations and kings come from you.