(19) O inhabitant of Aroer.--There seems to have been two cities of this name: one which had belonged first to the territory of Sihon, then to Reuben, then to Moab, on the north side of the Arnon (Deuteronomy 2:36; Deuteronomy 3:12; Deuteronomy 4:48; Joshua 12:2); another in the Ammonite territory belonging to Gad, near Rabbath-Ammon, in the valley of the Jabbok (Numbers 32:34; Joshua 13:25; Judges 11:33). Both are probably comprised under the "cities of Aroer" in Isaiah 17:2. The name exists in the modern Arair. As lying on the frontier, the inhabitants of the Northern Aroer are represented as seeing the fugitives, male and female, from Dibon, and asking what had happened to drive them from their city. Milton's lines (Par. Lost, L 407) may be quoted as illustrating the topography :

"From Aroer to Nebo, and the wild

Of Southmost Abarim; in Hesebon

And Horonaim, Seon's realm . . ."

Verse 19. - The inhabitants of Aroer will come out in eager expectation to meet the fugitives, and ask, What hath happened? (so the question should be rendered). There were several Aroers (one belonged to the Ammonites, Joshua 13:25), but as the enemy is driving the Moabites southward, the Aroer here intended can only be the town by the Arnon, which separated Moab proper first of all from the kingdom of the Amorites (Deuteronomy 4:48; Joshua 12:2), and afterwards from the territory of the Israelites (Deuteronomy 2:36; Deuteronomy 3:12). The picture drawn in this verse is singularly appropriate to the site of Arnon, "just by the edge of the arterial highway of Moab," and commanding a complete view of the pass of the Arnon (Tristram, 'Land of Moab,' p. 132). There is the same variety of statement as to the Israetitish tribe to which Aroer belonged as in the case of Dibon (see ver. 18). Joshua 13:16 speaks in favour of Reuben; Numbers 32:34 in favour of Gad.

48:14-47. The destruction of Moab is further prophesied, to awaken them by national repentance and reformation to prevent the trouble, or by a personal repentance and reformation to prepare for it. In reading this long roll of threatenings, and mediating on the terror, it will be of more use to us to keep in view the power of God's anger and the terror of his judgments, and to have our hearts possessed with a holy awe of God and of his wrath, than to search into all the figures and expressions here used. Yet it is not perpetual destruction. The chapter ends with a promise of their return out of captivity in the latter days. Even with Moabites God will not contend for ever, nor be always wroth. The Jews refer it to the days of the Messiah; then the captives of the Gentiles, under the yoke of sin and Satan, shall be brought back by Divine grace, which shall make them free indeed.O inhabitant of Aroer,.... Another city that belonged to Moab, situated on the border of it towards Ammon, near the river Arnon; See Gill on Isaiah 17:2;

stand by the way, and espy; get to the road side where travellers pass, and look out for them:

ask him that fleeth, and her that escapeth; whether man or woman you see fleeing, having escaped the army of the Chaldeans:

and say, what is done? by the Chaldeans; ask what cities they have taken; what progress they have made; what is done to their cities, that they flee from them? tell all the particulars of things.