Joshua 11:9

5 All these kings joined forces and encamped at the waters of Merom to fight against Israel.

6 Then the LORD said to Joshua, “Do not be afraid of them, for by this time tomorrow I will deliver all of them slain before Israel. You are to hamstring their horses and burn up their chariots.”

7 So by the waters of Merom, Joshua and his whole army came upon them suddenly and attacked them,

8 and the LORD delivered them into the hand of Israel, who struck them down and pursued them all the way to Greater Sidon and Misrephoth-maim, and eastward as far as the Valley of Mizpeh. They struck them down, leaving no survivors.

9 Joshua treated them as the LORD had told him; he hamstrung their horses and burned up their chariots.

10 At that time Joshua turned back and captured Hazor and put its king to the sword, because Hazor was formerly the head of all these kingdoms.

11 The Israelites put everyone in Hazor to the sword, devoting them to destruction. Nothing that breathed remained, and Joshua burned down Hazor itself.

12 Joshua captured all these kings and their cities and put them to the sword. He devoted them to destruction, as Moses the LORD’s servant had commanded.

13 Yet Israel did not burn any of the cities built on their mounds, except Hazor, which Joshua burned.

Read all of Joshua 11