Numbers 4:27-37

27 `By the command of Aaron and his sons is all the service of the sons of the Gershonite in all their burden, and in all their service; and ye have laid a charge on them concerning the charge of all their burden.
28 This [is] the service of the families of the sons of the Gershonite in the tent of meeting; and their charge [is] under the hand of Ithamar son of Aaron the priest.
29 `The sons of Merari, by their families, by the house of their fathers, thou dost number them;
30 from a son of thirty years and upward even unto a son of fifty years thou dost number them, every one who is going in to the host, to do the service of the tent of meeting.
31 `And this [is] the charge of their burden, of all their service in the tent of meeting; the boards of the tabernacle, and its bars, and its pillars, and its sockets,
32 and the pillars of the court round about, and their sockets, and their pins, and their cords, of all their vessels, and of all their service; and by name ye do number the vessels of the charge of their burden.
33 `This [is] the service of the families of the sons of Merari, for all their service, in the tent of meeting, by the hand of Ithamar son of Aaron the priest.'
34 And Moses numbereth -- Aaron also, and the princes of the company -- the sons of the Kohathite, by their families, and by the house of their fathers,
35 from a son of thirty years and upward even unto a son of fifty years, every one who is going in to the host, for service in the tent of meeting,
36 and their numbered ones, by their families, are two thousand seven hundred and fifty.
37 These [are] those numbered of the families of the Kohathite, every one who is serving in the tent of meeting, whom Moses and Aaron numbered, by the command of Jehovah, by the hand of Moses.

Numbers 4:27-37 Meaning and Commentary

INTRODUCTION TO NUMBERS 4

This chapter relates an order to number the Levites fit for business, and gives an account of the time and age when they should enter into service, and how long they should continue therein, Nu 4:1-3; what their particular service should be; and first of the Kohathites, Nu 4:4-20; next of the Gershonites, Nu 4:21-28; and then of the Merarites, Nu 4:29-33; after which Moses and Aaron, with the chief of the congregation, numbered each of them, even as many as were at the age fit for service, as the Kohathites, Nu 4:34-37; the Gershonites, Nu 4:38-41; the Merarites, Nu 4:42-45; the sum total of which is given, Nu 4:46-49.

Young's Literal Translation is in the public domain.