Comentario sobre Números 7:5

קח מאתם, Moses had thought that anything that the Levites would carry had to be carried on their shoulders, as the Torah had spelled out in connection with how the Kehatites were to perform their tasks (verse 9).

קח מאתם, "accept it from them!" The reason the Torah wrote the word מאתם (instead of מהם) is that as of that moment the gifts were still the property of the princes and had not as yet been transferred to Moses. The reason that Moses had not as yet accepted the gifts was that he had not been commanded that the Tabernacle be transported on wagons and did not know what else to do with them. The princes had reasoned that seeing the boards and the sockets of the Tabernacle were large and heavy respectively, they would need to be transported on wagons. As it turned out, G'd agreed with their reasoning.

ונתתה אותם אל הלוים איש כפי עבודתו, “you (Moses) will hand them over to the Levites, each in accordance with the needs of their specific tasks.” This left open the construction of additional wagons if the ones donated by the princes should prove insufficient. It is hardly likely that twelve oxen could pull the 48 sections of the Tabernacle’s walls, plus the one hundred sockets of silver each very heavy, plus all the pillars and the heavy skins and carpets making up the roof of the Tabernacle, not to mention the curtains and supports surrounding the courtyard of the Tabernacle.