Numbers 4:2

Take the sum of the sons of Kohath from among the sons of Levi,.... They were to begin with them first, and number them:

after their families, by the house of their fathers; as many as were of the…

We have here a second muster of the tribe of Levi. As that tribe was taken out of all Israel to be God's peculiar, so the middle-aged men of that tribe were taken from among the rest to be actually…