Migdol - Magdolum, a city of Lower Egypt. Noph, Memphis. Tahpanhes, Daphne. See before, Jeremiah 44:1; (note).
Round about thee - The Phoenicians, Philistines, Ammonites, Moabites, and Edomites, all prostrated by the arms of the Chaldeans.
The sword shall devour - “The sword” hath devoured “those round about thee.” One after another the nations have been consumed by Nebuehadnezzar; and now at length Tyre, which so long had withstood him, has fallen, and his forces are about to fall upon Egypt (Jeremiah 2:16 note). Hence, the summons to arrange themselves in their ranks, and to prepare for battle by putting on their armor.