Genesis 13:7-12

And there was strife and quarreling between the herdsmen of Abram’s cattle and the herdsmen of Lot’s cattle. Now the Canaanite and the Perizzite were living in the land at that same time [making grazing of the livestock difficult]. So Abram said to Lot, “Please let there be no strife and disagreement between you and me, nor between your herdsmen and my herdsmen, because we are relatives. Is not the entire land before you? Please separate [yourself] from me. If you take the left, then I will go to the right; or if you choose the right, then I will go to the left.” So Lot looked and saw that the valley of the Jordan was well watered everywhere—this was before the LORD destroyed Sodom and Gomorrah; [it was all] like the garden of the LORD, like the land of Egypt, as you go to Zoar [at the south end of the Dead Sea]. Then Lot chose for himself all the valley of the Jordan, and he traveled east. So they separated from each other. Abram settled in the land of Canaan, and Lot settled in the cities of the valley and camped as far as Sodom and lived there.