במדבר, פרק ז׳, פסוק ה׳

The presentation of wagons and oxen by the leaders created a practical and legal dilemma for Moses. He initially refused to accept the gifts, leaving the animals and carts in the possession of the leaders. This reluctance stemmed from the fact that these items were not on the original list of required materials [ביאור שטיינזלץ]. Because he had not been explicitly commanded to use wagons [אור החיים], Moses assumed that the Levites were required to carry all the Tabernacle components on their shoulders, just as they transported the holy vessels [ספורנו].

Despite Moses' hesitation, the leaders had independently deduced that the heavy boards and sockets of the Tabernacle were simply too massive to carry by hand and required wagons. God agreed with their practical insight and intervened, instructing Moses to accept the offering [אור החיים]. This divine approval resolved Moses' uncertainty, officially dedicating the wagons and oxen to the labor of transporting the Tabernacle.

Moses was then instructed to distribute these resources among the Levite families based on the size and weight of the load each group was assigned to carry [ביאור שטיינזלץ]. However, this created a new logistical challenge, as six wagons and twelve oxen were completely insufficient to carry all forty-eight boards, along with the heavy sockets, bars, pillars, and curtains. Therefore, the instruction to distribute the transport based on the workload carried an implicit permission, allowing the Levites to acquire and add as many extra wagons and beasts of burden as they needed to successfully complete the task [חזקוני].