11 The Israelites put everyone in Hazor to the sword, devoting them to destruction. Nothing that breathed remained, and Joshua burned down Hazor itself.
Joshua 11:11 Cross References - BSB
Deuteronomy 20:16
16 However, in the cities of the nations that the LORD your God is giving you as an inheritance, you must not leave alive anything that breathes.
Joshua 10:40
40 So Joshua conquered the whole region—the hill country, the Negev, the foothills, and the slopes, together with all their kings—leaving no survivors. He devoted to destruction everything that breathed, just as the LORD, the God of Israel, had commanded.