Parashat Bemidbar discusses the responsibilities of the Levites, and it appears that they are divided into a number of different tasks, including: transporting the Mishkan and its vessels, dismantling the Mishkan in preparation for travel and reassembling it when encamped, and general responsibility for guarding and preserving the Mishkan, as we find, “the Levites shall stand guard around the Tabernacle of the Pact” (Bemidbar 1:53). An examination of these different tasks reveals that, in some respects, they are contradictory.