Matthew Poole and continuators on Jeremiah 48:18

18 Thou daughter that dost inhabit Dibon, come down from thy glory , and sit in thirst : for the spoiler of Moab shall come upon thee , and he shall destroy thy strong holds.

Of this Dibon we read, Num. 21.30. It was a land for cattle, Num. 32.3. both Dibon and Aroer, and Ataroh were built by the children of Gad to whose lot it fell, ver. 34. as also to the Reubenites in part, Iosh. 13.17. It should seem that the Moabites were now come into the possession of it, either by conquest, or upon the Assyrians taking the Ten Tribes.

It was a place well watered (otherwise it had not been fit for Cattel) God threatneth that she should be in thirst, that is driven into some dry, barren Countries.

For the King of Babylon whom God had appointed to spoil all Moab, shall destroy thee also, and thy strong holds shall not secure thee.