Numbers 4:37, 41, 45

These are the numbered men of the Kohathite families, everyone who was serving in the tent of meeting, whom Moses and Aaron numbered according to the commandment of the LORD through Moses.

These are the numbered men of the families of the sons of Gershon, everyone who was serving in the tent of meeting, whom Moses and Aaron numbered according to the commandment of the LORD.

These are the numbered men of the families of the sons of Merari, whom Moses and Aaron numbered according to the commandment of the LORD through Moses.