Numbers 4:3-5

New Revised Standard Version Updated Edition

³ from thirty years old up to fifty years old, all who qualify to do work relating to the tent of meeting.^{(A) 4} The service of the Kohathites relating to the tent of meeting concerns the most holy things.

⁵ “When the camp is to set out, Aaron and his sons shall go in and take down the screening curtain and cover the ark of the covenant with it;