Genesis 15:15-18

15:15 But as for you, you will go to your ancestors in peace and be buried at a good old age. 15:16 In the fourth generation your descendants will return here, for the sin of the Amorites has not yet reached its limit.”

15:17 When the sun had gone down and it was dark, a smoking firepot with a flaming torch passed between the animal parts. 15:18 That day the Lord made a covenant with Abram: “To your descendants I give this land, from the river of Egypt to the great river, the Euphrates River –