Numbers 4:1-3

New American Standard Bible

Duties of the Kohathites

4 Then the Lord spoke to Moses and to Aaron, saying, ² “Take a ^[a]census of the ^[b]descendants of Kohath from among the sons of Levi, by their families, by their fathers’ households, ³ from ^(A)thirty years old and upward, even to fifty years old, everyone who can enter the service of ministry to do work in the tent of meeting.