Genesis 13:15

Abram lived in the land of Canaan, and Lot lived in the cities of the plain, and moved his tent as far as Sodom.

Now the men of Sodom were exceedingly wicked and sinners against the LORD.

The LORD said to Abram, after Lot was separated from him, “Now, lift up your eyes, and look from the place where you are, northward and southward and eastward and westward,

I will make your offspring as the dust of the earth, so that if a man can count the dust of the earth, then your offspring may also be counted.

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

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