Numbers 4:37, 41, 45

These are they that were numbered of the families of the Kohathites, all that did serve in the tent of meeting, whom Moses and Aaron numbered according to the commandment of Jehovah by Moses.

These are they that were numbered of the families of the sons of Gershon, all that did serve in the tent of meeting, whom Moses and Aaron numbered according to the commandment of Jehovah.

These are they that were numbered of the families of the sons of Merari, whom Moses and Aaron numbered according to the commandment of Jehovah by Moses.