What does Genesis 14:7 mean?

The previous verses described how four eastern kings, led by Chedorlaomer, king of Elam, went to war against the city-states in Canaan in response to a rebellion against their rule.

Their route took them south along a line east of the Jordan River, defeating all in their path all of the way to the edge of the southern wilderness at El-paran. Next, they turned back to the north and west, defeating En-mishpat (Kadesh), along with the Amalekites and Amorites in the region. That would have brought the four kings, at last, to the southern end of the Dead Sea. There the five kings of the city-states in that region had gathered in the Valley of Siddim to await their attack (Genesis 14:3).

In the verses to follow, it will finally become clear what all of this has to do with God's man Abram, who was living in the region. Specifically, the connection is to Abram's nephew, Lot, who has chosen to live very near to one of these rebelling cities, Sodom (Genesis 13:10–12).