And these are the last words of David, a saying of David the son of Jesse, and a statement of the man raised on high, the anointed of the God of Jacob, and the sweet singer of Israel:
These were the sons of Levi to the house of their fathers, the heads of the fathers, to their rosters, by number of names, by their heads, who did the work for the service of the house of Jehovah from the son of twenty years and over.
because their office was to wait on the sons of Aaron for the service of the house of Jehovah, in the courts, and in the rooms, and in the purifying of all holy things, and the work of the service of God’s house,
and enrolled genealogically the priests by the house of their fathers, and of the Levites from a son of twenty years and upward, and their duties, and their divisions;