In their strength Hebrew, with their fence, walls, or bulwarks, that is, which were not ruined with their walls in taking them. Save Hazor Because this city began the war, and, being the chief and royal city, might renew the war, if the Canaanites should ever seize upon it: which in fact they did, and settled there, under a king of the same name, Judges 4:2.
Related Commentaries of Joshua 11:13
Joshua 11:13
13 But as for the cities that stood still in their strength, Israel burned none of them, save Hazor only; that did Joshua burn.