Genesis 14:2

These made war with Bera, etc. - It appears, from Genesis 14:4, that these five Canaanitish kings had been subdued by Chedorlaomer, and were obliged to pay him tribute; and that, having been enslaved by him twelve years, wishing to recover their liberty, they revolted in the thirteenth; in consequence of which Chedorlaomer, the following year, summoned to his assistance three of his vassals, invaded Canaan, fought with and discomfited the kings of the Pentapolis or five cities - Sodom, Gomorrah, Zeboiim, Zoar, and Admab, which were situated in the fruitful plain of Siddim, having previously overrun the whole land.

They made war. - Shinar was the central region from which the different branches of the human family dispersed after the confusion of tongues. It is possible that the mother country claimed some supremacy over the colonies. Shinar was also a great center of commerce, and the cities of the dale of Siddim formed another, of secondary importance. Intercourse between the two countries was therefore frequent. Abram himself had come from Ur Kasdim. The spirit of despotism had descended from Nimrod to the present potentates of the East, and prompted them to aim at universal empire. The five kings are the petty sovereigns, each of a single town and its neighborhood. The area in which these towns lay was very circumscribed. With the exception of the territory of Bela it was afterward submerged and formed part of the basin of the Salt Sea. Hence, Siddim is said to be the Salt Sea. The dale is the deep valley or glen in which these kings dwelt on the banks of the Jordan, or the salt lake into which it flowed. Of the five cities, Sodom was the chief in power, luxury, and wickedness; whence it is mentioned first. Bela is also called Zoar, "the little," and, hence, is placed last; even the name of its king is not given. "All these joined together." They formed a league in self-defense, and marched out to meet the enemy in the dale of Siddim.