Albert Barnes Commentary Jeremiah 48:1

"Of Moab. Thus saith Jehovah of hosts, the God of Israel: Woe unto Nebo! for it is laid waste; Kiriathaim is put to shame, it is taken; Misgab is put to shame and broken down." — Jeremiah 48:1 (ASV)

Against Moab – Concerning Moab.

Is confounded – Is brought to shame.

Misgab – The high fort; some special fortress, probably Kir-haraseth (2 Kings 3:25).