Joshua 21:40

“In all, twelve cities were allotted to the clans of Merari, the remaining Levite clans.”

“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.”

“All these were the cities of the children of Merari according to their families, even the rest of the families of the Levites; and their lot was twelve cities.”