Numbers 4:42-46

And the numbered men of the families of the sons of Merari by their families, by their fathers’ households,

from thirty years old and upward even to fifty years old, everyone who could enter the service for work in the tent of meeting—

their numbered men by their families were 3,200.

These were the numbered men of the families of the sons of Merari, whom Moses and Aaron counted according to the commandment of the Lord through Moses.

All the numbered men of the Levites, whom Moses, Aaron, and the leaders of Israel counted, by their families and by their fathers’ households,