Genesis 13:15-17

151for all the land which you see, 2I will give it to you and to your 3descendants forever.

16I will make your 4descendants 5as the dust of the earth, so that if anyone can number the dust of the earth, then your 6descendants can also be numbered.

17Arise, 7walk about the land through its length and breadth; for 8I will give it to you.”