Joshua 13:21

Cities of the plain — Opposed to the cities of the mountain of the valley. All the kingdom of Sihon — A great part of it; in which sense we read of all Judea, and all the region round about Jordan, Matthew 3:5, and all Galilee, Matthew 4:23. Whom Moses smote — Not in the same time or battle, as appears by comparing Numbers 21:23, with Numbers 31:8, but in the same manner. And they are here mentioned, partly because they were slain not long after, and upon the same occasion, even their enmity against Israel; and partly because of their relation and subjection to Sihon. Dukes of Sihon — But how could they be so, when they were kings of Midian? Numbers 31:8. There were divers petty kings in those parts, who were subject to greater kings; and such these were, but are here called dukes or princes of Sihon, because they were subject and tributaries to him, and therefore did one way or other assist Sihon in this war, though they were not killed at this time. It is probable, that when Sihon destroyed those Moabites which dwelt in these parts, he frighted the rest of them, and with them their neighbours and confederates, the Midianites, into some kind of homage, which they were willing to pay him. Dwelling in the country — Heb. inhabiting that land, namely Midian, last mentioned; whereby he signifies, that tho' they were subject to Sihon, yet they did not dwell in his land, but in another.