Numbers 4:32-34

New King James Version

³² and the pillars around the court with their sockets, pegs, and cords, with all their furnishings and all their service; and you shall ^(A)assign to each man by name the items he must carry. ³³ This is the service of the families of the sons of Merari, as all their service for the tabernacle of meeting, under the ^[a]authority of Ithamar the son of Aaron the priest.”

Census of the Levites

^34 (B)And Moses, Aaron, and the leaders of the congregation numbered the sons of the Kohathites by their families and by their fathers’ house,