Joshua 11:1-5, 10, 11

When Jabin king of Hazor heard of this, he sent word to Jobab king of Madon, to the kings of Shimron and Akshaph, and to the northern kings who were in the mountains, in the Arabah south of Kinnereth, in the western foothills and in Naphoth Dor on the west; to the Canaanites in the east and west; to the Amorites, Hittites, Perizzites and Jebusites in the hill country; and to the Hivites below Hermon in the region of Mizpah. They came out with all their troops and a large number of horses and chariots—a huge army, as numerous as the sand on the seashore. All these kings joined forces and made camp together at the Waters of Merom to fight against Israel.

At that time Joshua turned back and captured Hazor and put its king to the sword. (Hazor had been the head of all these kingdoms.)

Everyone in it they put to the sword. They totally destroyed them, not sparing anyone that breathed, and he burned Hazor itself.