Numbers 1:51

1:51 Whenever the tabernacle is to move, the Levites must take it down, and whenever the tabernacle is to be reassembled, the Levites must set it up. Any unauthorized person who approaches it must be killed.

Numbers 16:26

16:26 And he said to the community, “Move away from the tents of these wicked men, and do not touch anything they have, lest you be destroyed because of all their sins.”