of the fact that the territory of these tribes was not to reach merely to the northern edge of the Arnon valley, but into the middle of it, viz., to the river Arnon, which flowed through the middle of the valley; and וּגבוּל (and the border) is an explanatory apposition to what goes before, as in Num 34:6, signifying, “viz., the border of the Arnon valley as far as the river.” On the east, “even unto Jabbok the brook, the (western) border of the Ammonites” (i.e., as far as the upper Jabbok, the Nahr Ammân: see at Num 21:24); and on the west “The Arabah (the Ghor: see Deu 1:1) and the Jordan with territory” (i.e., with its eastern bank), “from Chinnereth” (i.e., the town from which the Sea of Galilee received the name of Sea of Chinnereth: Num 34:11; see at Jos 19:35) “to the sea of the Arabah, the Salt Sea under the slopes of Pisgah (see at Num 21:15 and Num 27:12) eastward” (i.e., merely the eastern side of the Arabah and Jordan). - In Deu 3:18-20 Moses reminds them of the conditions upon which he had given the two tribes and a half the land referred to for their inheritance (cf. Num 32:20-32).
verses 21-29
Nomination of Joshua as his Successor. - This reminiscence also recalls the goodness of God in the appointment of Joshua (Num 27:12.), which took place “at that time,” i.e., after the conquest of the land on the east of the Jordan. In accordance with the object of his address, which was to hold up to view what the Lord had done for Israel, he here relates how, at the very outset, he pointed Joshua to the things which he had seen with his eyes (הראת עיניך, thine eyes were seeing; cf. Ewald, §335, b.), namely, to the defeat of the two kings of the Amorites, in which the pledge was contained, that the faithful covenant God would complete the work He had begun, and would do the same to all kingdoms whither Joshua would go over (i.e., across the Jordan).
Verse 22
For this reason they were not to be afraid; for Jehovah Himself would fight for them. “He” is emphatic, and adds force to the subject.
verses 23-24
Moses then describes how, notwithstanding his prayer, the Lord had refused him permission to cross over into Canaan and see the glorious land. This prayer is not mentioned in the historical account given in the fourth book; but it must have preceded the prayer for the appointment of a shepherd over the congregation in Num 27:16, as the Lord directs him in His reply (Deu 3:28) to appoint Joshua as the leader of the people. In his prayer, Moses appealed to the manifestations of divine grace
