Joshua 21:40 in the King James Version
So all the cities for the children of Merari by their families, which were remaining of the families of the Levites, were by their lot twelve cities.
Context
39 Heshbon with its pasture lands, Jazer with its pasture lands: four cities in all.
40 All these were the cities of the children of Merari according to their families, even the rest of the families of the Levites. Their lot was twelve cities.
41 All the cities of the Levites among the possessions of the children of Israel were forty-eight cities with their pasture lands.