Numbers 4:37-39

Amplified Bible, Classic Edition

³⁷ These were numbered of the families of the Kohathites, all who did service in the Tent of Meeting, whom Moses and Aaron numbered according to the command of the Lord through Moses.

³⁸ And those that were numbered of the sons of Gershon, by their families, and by their fathers’ houses,

³⁹ From thirty years old up to fifty years old, everyone who entered the service to do the work of the Tent of Meeting,