And the LORD said to Abram, after Lot had separated from him: “Lift your eyes now and look from the place where you are — northward, southward, eastward, and westward; for all the land which you see I give to you and your descendants forever.
On the same day the LORD made a covenant with Abram, saying:
“To your descendants I have given this land, from the river of Egypt to the great river, the River Euphrates— the Kenites, the Kenezzites, the Kadmonites, the Hittites, the Perizzites, the Rephaim, the Amorites, the Canaanites, the Girgashites, and the Jebusites.”
Map of the land boundaries:
see map here