What does Genesis 13:6 mean?

Abram's large company of travelers included Lot, his nephew. God's blessing on Abram extended to Lot, who had also become quite wealthy in flocks and herds and servants. In fact, God's blessing was so great that the land could not support Abram's and Lot's possessions living near each other. They would soon exhaust all the local resources.

The following verses will make clear that Abram and Lot were going to need to separate and spread out from each other. This development will set up the events of the next several chapters. Lot will choose to live close to the rich—but infamously wicked—city of Sodom. Lot's wealth will result in his own kidnapping, and a rescue by Abram (Genesis 14:1–16). Pursuit of wealth will also lead Lot to an eventual life within Sodom itself, necessitating a rescue when God judges the city for its sin (Genesis 19).