Genesis 15:13; Genesis 15:16; Genesis 15:18

13 Then the LORD said to him, "You can be sure of what I am about to tell you. Your children who live after you will be strangers in a country that does not belong to them. They will become slaves. They will be treated badly for 400 years.

16 "Your children's grandchildren will come back here. That is because the sin of the Amorites has not yet reached the point where I must judge them."

18 On that day the LORD made a covenant with Abram. He said, "I am giving this land to your children after you. It reaches from the river of Egypt to the great river Euphrates.