John Gill

Then shall thou bring forth thy stuff by day in their sight,.... Bring it forth, that they may be spectators of it; and "by day", that it might be manifest to them what was carried out; and this day by day, till all was removed: as stuff for removing; that is intended to be removed from one place to another, and is carried away in the daytime, in the view of everyone: and thou shall go forth at even in their sight; as a man, having removed his goods in the daytime, goes forth himself at evening: this denotes the flight of Zedekiah from Jerusalem in the night, Jer 39:4; as they that go forth into captivity: with a sorrowful countenance, in a mournful habit, and with airs and gestures showing anger, anxiety, and distress; with a bundle on their shoulders, and a staff in their hands.