Genesis 15:16-20

But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full.

And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces.

In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:

The Kenites, and the Kenizzites, and the Kadmonites,

And the Hittites, and the Perizzites, and the Rephaims,