Genesis 13:15-19

for all the land which you see I will give to you and to your descendants forever.

I will make your descendants as plentiful as the dust of the earth, so that if anyone can count the dust of the earth, then your descendants could also be counted.

Arise, walk about in the land through its length and width; for I will give it to you.”

Then Abram moved his tent and came and lived by the oaks of Mamre, which are in Hebron; and there he built an altar to the Lord.