Genesis 13:14-16

14The Lord said to Abram, after Lot had separated from him, "Lift up your eyes and look from the place where you are, northward and southward and eastward and westward,

15for all the land that you see I will give to you and to your offspring forever.

16I will make your offspring as the dust of the earth, so that if one can count the dust of the earth, your offspring also can be counted.