Numbers 4:45-47

New Revised Standard Version Updated Edition

⁴⁵ This is the enrollment of the clans of the Merarites, whom Moses and Aaron enrolled according to the commandment of the Lord by Moses.^(A)

⁴⁶ All those who were enrolled of the Levites, whom Moses and Aaron and the leaders of Israel enrolled, by their clans and their ancestral houses, ⁴⁷ from thirty years old up to fifty years old, all who qualified to do the work of service and the work of bearing burdens relating to the tent of meeting,^(B)