But the Kohathites must not go in to look at the holy things, even for a moment, or they will die.”
OJBBut they shall not go in to look for a single instant at hakodesh, lest they die.
Onkelos (Etheridge)But they shall not go in to see, when the vessels of the sanctuary are covered, lest they die.
T4T[4:18–20]“When the descendants of Kohath approach the sacred items in the Sacred Tent to take them to another location, Aaron and his sons must always go in with them and show each of them what work to do and what things to carry. But the descendants of Kohath must not enter the Sacred Tent at any other time and look at the things that are in it. If they do that, I will get rid of all the descendants of Kohath.”