Numbers 4:19-21

Revised Standard Version

¹⁹ but deal thus with them, that they may live and not die when they come near to the most holy things: Aaron and his sons shall go in and appoint them each to his task and to his burden, ²⁰ but they shall not go in to look upon the holy things even for a moment, lest they die.”

The Gershonites and Merarites

²¹ The Lord said to Moses,