English Standard Version
but they shall not go in to look on the holy things even for a moment, lest they die.”

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

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

Douay-Rheims Bible
Let not others by any curiosity see the things that are in the sanctuary before they be wrapped up, otherwise they shall die.

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

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

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

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

Numbers 4:20 Additional Translations ...