These were the sons of Levi according to their ancestral houses, the family heads as they were enrolled one by one according to their names. They performed the work of the service of the house of the Lord beginning at twenty years of age.
This, then, is the task of the clans of the Merarites with respect to all their service in the tent of meeting under the supervision of Ithamar, son of Aaron the priest. Number of Adult Levites.