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.

     8-13. If there arise a matter too hard for thee in judgment—In all civil or criminal cases, where there was any doubt or difficulty in giving a decision, the local magistrates were to submit them by reference to the tribunal of the Sanhedrim—the supreme council, which was composed partly of civil and partly of ecclesiastical persons. "The priests and Levites," should rather be "the priests—the Levites"; that is, the Levitical priests, including the high priest, who were members of the legislative assembly; and who, as forming one body, are called "the judge." Their sittings were held in the neighborhood of the sanctuary because in great emergencies the high priest had to consult God by Urim (Nu 27:21). From their judgment there was no appeal; and if a person were so perverse and refractory as to refuse obedience to their sentences, his conduct, as inconsistent with the maintenance of order and good government, was then to be regarded and punished as a capital crime.

     De 17:14-20. THE ELECTION AND DUTY OF A KING.