Numbers 4:19-21

Modern English Version

¹⁹ But do this to them, that they may live and not die, when they approach the most holy things. Aaron and his sons will go in, and appoint each one to his service and to his burden. ²⁰ But they will not go in to see when the holy things are covered, lest they die.

Duties of the Gershonites

²¹ The Lord spoke to Moses, saying: