Treasury of Scripture Knowledge
And they set the priests in their divisions, and the Levites in their courses, for the service of God, which is at Jerusalem; as it is written in the book of Moses.
As it is written
Bring near the tribe of Levi, and make it stand before Aaron the priest; and they served him.
And bring near the Levites before the tent of appointment: and gather all the assembly of the sons of Israel.