16 In the fourth generation your descendants will come back here, for the sin of the Amorites has not yet reached its full measure.”
17 When the sun had set and darkness had fallen, a smoking firepot with a blazing torch appeared and passed between the pieces.

References for Genesis 15:17

18 On that day the LORD made a covenant with Abram and said, “To your descendants I give this land, from the Wadia of Egypt to the great river, the Euphrates—
19 the land of the Kenites, Kenizzites, Kadmonites,
20 Hittites, Perizzites, Rephaites,

References for Genesis 15:20

21 Amorites, Canaanites, Girgashites and Jebusites.”

References for Genesis 15:21