Numbers 4:46 in the King James Version
All those that were numbered of the Levites, whom Moses and Aaron and the chief of Israel numbered, after their families, and after the house of their fathers,
Context
45 These are those who were counted of the families of the sons of Merari, whom Moses and Aaron counted according to the commandment of the LORD by Moses.
46 All those who were counted of the Levites whom Moses and Aaron and the princes of Israel counted, by their families and by their fathers’ houses,
47 from thirty years old and upward even to fifty years old, everyone who entered in to do the work of service and the work of bearing burdens in the Tent of Meeting,