Numbers 4:20

But they shall not go in to see when the holy things are covered, lest they die.

but they shall not go in to see the sanctuary even for a moment, lest they die."

but they shall not go in to see the sanctuary even for a moment, lest they die.

and they go not in to see when the holy thing is swallowed, that they have died.'

But the Kohathites are not to go in and look at the holy objects, even for a moment, or they will die.”