Now these are the last words of David. Thus says David the son of Jesse; Thus says the man raised up on high, The anointed of the God of Jacob, And the sweet psalmist of Israel:
These were the sons of Levi by their fathers’ houses—the heads of the fathers’ houses as they were counted individually by the number of their names, who did the work for the service of the house of the Lord, from the age of twenty years and above.
because their duty was to help the sons of Aaron in the service of the house of the Lord, in the courts and in the chambers, in the purifying of all holy things and the work of the service of the house of God,
and to the priests who were written in the genealogy according to their father’s house, and to the Levites from twenty years old and up according to their work, by their divisions,
Also they shall attend to all the furnishings of the tabernacle of meeting, and to the needs of the children of Israel, to do the work of the tabernacle.