O inhabitant of Aroer - See the note on Jeremiah 48:6; (note). This place, being at a greater distance, is counselled to watch for its own safety, and inquire of every passenger, What is done? that it may know when to pack up and be gone.
Aroer - On the Arnon, due south of Dibon. If Dibon falls, the turn of Aroer will come next, and therefore its inhabitants are to be on the look out, asking for news.