Genesis 13:5-7

5And Lot, who went with Abram, also had flocks and herds and tents,

6so that the land could not support both of them dwelling together; for their possessions were so great that they could not dwell together,

7and there was strife between the herdsmen of Abram's livestock and the herdsmen of Lot's livestock. At that time the Canaanites and the Perizzites were dwelling in the land.