Joshua 21:40-45

So in all, twelve towns were allotted to the clan of Merari. The total number of towns and pasturelands within Israelite territory given to the Levites came to forty-eight. Every one of these towns had pasturelands surrounding it. So the LORD gave to Israel all the land he had sworn to give their ancestors, and they took possession of it and settled there. And the LORD gave them rest on every side, just as he had solemnly promised their ancestors. None of their enemies could stand against them, for the LORD helped them conquer all their enemies. Not a single one of all the good promises the LORD had given to the family of Israel was left unfulfilled; everything he had spoken came true.