John Gills Exposition of the Bible Commentary - Jeremiah 49:3
Howl, O Heshbon ,.... Which was a city of Moab, though it formerly belonged to the Amorites; see Jeremiah 48:2 ; it was upon the border of Ammon, and near to Ai, now destroyed; and therefore is called upon to howl and lament, because its destruction also was near at hand, and might be expected; hence Kimchi gathers, that the Ammonites were destroyed before the Moabites: but some have thought that Heshbon was a double city, divided by a river, which ran through it; and that that city which... read more
Matthew Henry's Complete Commentary - Jeremiah 49:1-6
The Ammonites were next, both in kindred and neighbourhood, to the Moabites, and therefore are next set to the bar. Their country joined to that of the two tribes and a half, on the other side Jordan, and was but a bad neighbour; however, being a neighbour, they shall have a share in these circular predictions. 1. An action is here brought, in God's name, against the Ammonites, for an illegal encroachment upon the rightful possessions of the tribe of Gad, that lay next them, Jer. 49:1. A writ... read more