Numbers 7:3
covered <06632> [covered waggons.]
The Hebrew {egloth tzav,} signifies "tilted wagons;" so LXX. [hamaxas lamp‚nikas,] with which the Coptic agrees. These were given for the more convenient exporting of the heavier parts of the tabernacle.
Numbers 7:7-8
two carts <08147 05699> [Two wagons.]
Gershonites <01648 01121> [sons of Gershon.]
The Gershonites being fewest in number of able men, had the less burdensome things to carry; for they carried only the curtains, coverings, and hangings, (ch. 4:25, 40.) And although this was a cumbersome carriage, and they needed waggons, yet it was not a heavy one, and they needed few.
four carts <05699 0702> [four wagons.]
Merarites ........... son <01121> [the sons.]
Though the Merarites were the most numerous, yet they had the greatest burden, namely, the boards, bars, pillars, and sockets, to carry, (ch. 4:31, 32, 48.) Therefore they had double the number of waggons to what the Gershonites had assigned them.