Numbers 3:25

“And the charge of the sons of Gershom, etc.] The Libnites and Shimites: in the tabernacle of the congregation; or with respect to the things of it, when it was taken down and committed to them; for otherwise they had no place in it, nor might they enter into it, or do any service therein: [shall be] the tabernacle and the tent; the former intends not the boards of it, which were the charge of the Merarites, (<040336>Numbers 3:36); but the curtains, as Aben Ezra, or the under curtains, as Jarchi calls them, which were made of fine twined linen, (<022601>Exodus 26:1); and the latter is to be understood of the eleven curtains, as Aben Ezra, the curtains of goats hair, which were made for the…”

“The tabernacle - Not the boards, which belonged to Merari, Num 3:36, but the ten curtains. The tent - The curtains of goats hair. The coverings - That is, the coverings of rams - skins and badgers - skins. Numbers 3:26”

“the charge: From this and the next chapter, we see the very severe labour which the Levites were to perform, while the journeyings of the Israelites lasted. When we consider, that there was not less than 14 tons 266 lbs. of metal employed in the tabernacle (see note on Exo 38:24), besides the immense weight of the skins, hangings, cords, boards, and posts, we shall find it was no easy matter to transport this moveable temple from place to place. The Gershonites, who were 7,500 in number had to carry the tent, coverings, vail, hangings of the court, cords, etc. ( Num 3:25 and Num 3:26); the Kohathites, who were 8,600, the ark, table, candlestick, altars, and instruments of the sanctuary ( Num…”