Verse 18. - Then they went along, etc. The narrative here follows Deuteronomy 2:1. For they compassed the land of Edom. Deuteronomy 2:1 has, "we compassed Mount Seir;" but Numbers 21:4 has, "to compass the land of Edom." By the east side - literally, by the sun-rising side, as in Numbers 21:11. They pitched on the other side of Arnon. The identical words occur in Numbers 21:13. For Arnon was the border of Moab. The identical words of Numbers 21:18, where it is added, "between Moab and the Amorites." South of the Amen belonged to Moab, and north to the Amorites. The route taken by the Israelites is carefully traced (Numbers 21:11-20).

11:12-28 One instance of the honour and respect we owe to God, as our God, is, rightly to employ what he gives us to possess. Receive it from him, use it for him, and part with it when he calls for it. The whole of this message shows that Jephthah was well acquainted with the books of Moses. His argument was clear, and his demand reasonable. Those who possess the most courageous faith, will be the most disposed for peace, and the readiest to make advances to obtain; but rapacity and ambition often cloak their designs under a plea of equity, and render peaceful endeavours of no avail.Then they went along the wilderness,.... The wilderness of Paran, which lay along the borders of Edom; they went, according to Jarchi, from the west to the east on the south border of Edom and Moab:

and compassed the land of Edom, and the land of Moab; all the south of the land of Edom, and all the south of the land of Moab; towards the sunrising, as in Numbers 21:11.

and pitched on the other side of Arnon; the river Arnon, which, according to Jarchi, was at the east end of the land of Moab, where began the country of Sihon and Og:

but came not within the border of Moab; so far were they from attempting to take away any part of that land from the king of it, though ill treated by him:

for Arnon was the border of Moab; which divided between Moab and the Amorites, Numbers 21:13.