As Hazor was the ringleader of this war, for so we read in the opening of the chapter, Joshua directed his special vengeance on him. This Hazor is a remarkable place in scripture, for it contained the enemy to God's church and people, for we find another Jabin of this kingdom, rising up to afflict Israel; see Judges 4:2. Perhaps as we read in the 13th verse, that Israel spared the strong cities of Hazor, this became a snare to their children after. For so the Lord hath said: Exodus 20:5. But let not the Reader overlook what is said of Joshua's uprightness, he left nothing undone of all the Lord's commands. Oh! it is lovely to behold souls zealous for the honour of their Lord, and to have respect unto all his precepts. Psalms 119:128.
Joshua 11:10-15
10 And Joshua at that time turned back, and took Hazor, and smote the king thereof with the sword: for Hazor beforetime was the head of all those kingdoms.
11 And they smote all the souls that were therein with the edge of the sword, utterly destroying them: there was not any left to breathe: and he burnt Hazor with fire.
12 And all the cities of those kings, and all the kings of them, did Joshua take, and smote them with the edge of the sword, and he utterly destroyed them, as Moses the servant of the LORD commanded.
13 But as for the cities that stood still in their strength, Israel burned none of them, save Hazor only; that did Joshua burn.
14 And all the spoil of these cities, and the cattle, the children of Israel took for a prey unto themselves; but every man they smote with the edge of the sword, until they had destroyed them, neither left they any to breathe.
15 As the LORD commanded Moses his servant, so did Moses command Joshua, and so did Joshua; he leftb nothing undone of all that the LORD commanded Moses.