Now these are the last words of David. David the son of Jesse said, and the man who was raised up on high, the anointed of the God of Jacob, and the sweet psalmist of Israel, said,
These were the sons of Levi by their fathers’ houses; even the heads of their fathers’ houses, as they were counted individually by the number of their names, that did the work for the service of the house of the LORD, from the age of twenty years and upward.
Because their office was to wait on the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and the work of the service of the house of God;
And to the priests enrolled by genealogy according to their fathers’ house, and the Levites from twenty years old and upward, in their work by their divisions;