The Lord told Moses to take a census of the Levite clan of Merari by subclans and families,
They were also responsible for the posts, bases, pegs, and ropes for the outer court.
These are the responsibilities of the Gershon clan in the Tent; they shall carry them out under the direction of Ithamar son of Aaron the priest.
and to register all the men between the ages of thirty and fifty who were qualified to work in the Tent of the Lord's presence.
and four wagons and eight oxen to the Merarites. All their work was to be done under the direction of Ithamar son of Aaron.