24-36. Rise ye up . . . and pass over the river Arnon—At its mouth, this stream is eighty-two feet wide and four deep. It flows in a channel banked by perpendicular cliffs of sandstone. At the date of the Israelitish migration to the east of the Jordan, the whole of the fine country lying between the Arnon and the Jabbok including the mountainous tract of Gilead, had been seized by the Amorites, who, being one of the nations doomed to destruction (see De 7:2; 20:16), were utterly exterminated. Their country fell by right of conquest into the hands of the Israelites. Moses, however, considering this doom as referring solely to the Amorite possessions west of Jordan, sent a pacific message to Sihon, requesting permission to go through his territories, which lay on the east of that river. It is always customary to send messengers before to prepare the way; but the rejection of Moses' request by Sihon and his opposition to the advance of the Israelites (Nu 21:23; Jud 11:26) drew down on himself and his Amorite subjects the predicted doom on the first pitched battlefield with the Canaanites. It secured to Israel not only the possession of a fine and pastoral country, but, what was of more importance to them, a free access to the Jordan on the east.

     3-8. Argob was the capital of a district in Bashan of the same name, which, together with other fifty-nine cities in the same province, were conspicuous for their lofty and fortified walls. It was a war of extermination. Houses and cities were razed to the ground; all classes of people were put to the sword; and nothing was saved but the cattle, of which an immense amount fell as spoil into the hands of the conquerors. Thus, the two Amorite kings and the entire population of their dominions were extirpated. The whole country east of the Jordan—first upland downs from the torrent of the Arnon on the south to that of the Jabbok on the north; next the high mountain tract of Gilead and Bashan from the deep ravine of Jabbok—became the possession of the Israelites.