Runs to and fro — This seems not proper to these insects, but it well suits with soldiers, that conquer a city and search all places for plunder. Run upon the wall — To clear the wall of all the besieged. The houses — Either forsaken by the inhabitants, or defended by such as are in them. Like a thief — Suddenly, unexpectedly, to spoil if not to kill.
Related Commentaries of Joel 2:9
Joel 2:9
9 They shall run to and fro in the city; they shall run upon the wall, they shall climb up upon the houses; they shall enter in at the windows like a thief.