Matthew Henry on Genesis 14:1-12
We have here an account of the first war that ever we read of in scripture, which (though the wars of the nations make the greatest figure in history) we should not have had the history of if Abram and Lot had not been concerned in it. Now, concerning this war, we may observe,
I. The parties engaged in it. The invaders were four kings, two of them no less than kings of Shinar and Elam (that is, Chaldea and Persia), yet probably not the sovereign princes of those great kingdoms in their own persons, but either officers under them, or rather the heads and leaders of some colonies which came out of those great nations, and settled themselves near Sodom, but retained the names of the countries f…
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These made war with Bera, etc. - It appears, from Gen 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.
John Gill on Genesis 14:4
Twelve years they served Chedorlaomer,.... King of Elam, who was of the race of Shem, and so the prophecy of Noah began to be fulfilled, that Canaan should be servant to Shem, Genesis 9:26; for the kings of Sodom, &c. and their subjects, were of the race of Ham in the line of Canaan, who had by violence seized on that part of the earth which was allotted to the sons of Shem, and therefore Chedorlaomer being a descendant of his claimed his right, and made them tributary to him, which they were for the space of twelve years:
and in the thirteenth year they rebelled; refused homage to Chedorlaomer and to pay tribute to him.
John Calvin on Genesis 14:1-9
And it came to pass in the days of Amraphel. The history related in this chapter is chiefly worthy of remembrance, for three reasons: first, because Lot, with a gentle reproof, exhorted the men of Sodom to repentance; they had, however, become altogether unteachable, and desperately perverse in their wickedness. But Lot was beaten with these scourges, because, having been allured and deceived by the richness of the soil, he had mixed himself with unholy and wicked men. Secondly, because God, out of compassion to him, raised up Abram as his avenger and liberator, to rescue him, when a captive, from the hand of the enemy; in which act the incredible goodness and benevolence of God towards his…