Genesis 15:13
Then the Lord said to him, “Know for certain that for four hundred years your descendants will be strangers in a country not their own and that they will be enslaved and mistreated there.
Genesis 15:16
In the fourth generation your descendants will come back here, for the sin of the Amorites has not yet reached its full measure.”
Genesis 15:18
On that day the Lord made a covenant with Abram and said, “To your descendants I give this land, from the Wadi15:18 Or river of Egypt to the great river, the Euphrates—