Numbers 7:8 References
8 and four carts and eight oxen he gave to the sons of Merari, according to atheir service, under the direction of Ithamar the son of Aaron the priest.
a Numbers 4:31, Numbers 4:32
31 "Now this is the duty of their loads, for 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 around the court and their sockets and their pegs and their cords, with all their equipment and with all their service; and you shall assign each man by name the items he is to carry.