Numbers 3:36

And [under] the custody and charge of the sons of Merari [shall be] the boards of the tabernacle,.... Both of the holy and the most holy place, which were the walls of the tabernacle, and which were covered with curtains; these when taken down for journeying were committed to the care of the Merarites; and because these, with what, follow, were a heavy carriage, they were allowed wagons to carry them; and who on this account had more wagons given them than to the Gershonites, for the Kohathites had none, Numbers 7:6;

and the bars thereof; which kept the boards tight and close, see

Exodus 26:26;

and the pillars thereof; the pillars on which the vail was hung, that divided between the holy and most holy place, and, on which the hanging was put for the door of the vail, Exodus 26:32;

and the sockets thereof; in which both the boards and pillars were put,

Exodus 26:19.