Numbers 16:27

16:27 So they got away from the homes of Korah, Dathan, and Abiram on every side, and Dathan and Abiram came out and stationed themselves in the entrances of their tents with their wives, their children, and their toddlers.

Numbers 32:17

32:17 but we will maintain ourselves in armed readiness and go before the Israelites until whenever we have brought them to their place. Our descendants will be living in fortified towns as a protection against the inhabitants of the land.