Numbers 4:31-33

31This is the work of the men in Merari's clan. They must carry the wood parts that hold the Tent of Meeting, and its poles. They must carry its pillars and its bases.

32And they must carry the pillars, bases, pegs and ropes for the yard that is round God's Tent. And the men in Merari's clan must keep all the tools that belong with those things safe. Each man in Merari's clan must take care of something. Tell each man which things he must carry.

33That is the work of the descendants of Merari in the Tent of Meeting. Ithamar, the son of Aaron the priest, will tell them the things that they must do.’