Genesis 13:14-16

The LORD said to Abram, after Lot had left him, “Now lift up your eyes and look from the place where you are standing, northward and southward and eastward and westward; for all the land which you see I will give to you and to your descendants forever. [Acts 7:5] I will make your descendants [as numerous] as the dust of the earth, so that if a man could count the [grains of] dust of the earth, then your descendants could also be counted. [Gen 28:14]