Genesis 13:8-13
13:8 Abram said to Lot, “Let there be no quarreling between me and you, and between my herdsmen and your herdsmen, for we are close relatives.
13:9 Is not the whole land before you? Separate yourself now from me. If you go to the left, then I’ll go to the right, but if you go to the right, then I’ll go to the left.”
13:10 Lot looked up and saw the whole region of the Jordan. He noticed that all of it was well-watered (before the Lord obliterated Sodom and Gomorrah) like the garden of the Lord, like the land of Egypt, all the way to Zoar.
13:11 Lot chose for himself the whole region of the Jordan and traveled toward the east.
So the relatives separated from each other.
13:12 Abram settled in the land of Canaan, but Lot settled among the cities of the Jordan plain and pitched his tents next to Sodom.
13:13 (Now the people of Sodom were extremely wicked rebels against the Lord.)