'Burn' in the Bible

The Lord said to Joshua, “Do not be afraid of them, for at this time tomorrow I will cause all of them to be killed before Israel. You are to hamstring their horses and burn up their chariots.”

However, Israel did not burn any of the cities that stood on their mounds except Hazor, which Joshua burned.

If you break the covenant of the Lord your God, which He commanded you, and go and worship other gods, and bow down to them, the Lord’s anger will burn against you, and you will quickly disappear from this good land He has given you.”