Numbers 4:39-41

21st Century King James Version

³⁹ from thirty years old and upward even unto fifty years old, every one who entereth into the service for the work in the tabernacle of the congregation”

⁴⁰ even those who were numbered of them throughout their families, by the house of their fathers, were two thousand and six hundred and thirty.

⁴¹ These are they that were numbered of the families of the sons of Gershon, of all who might do service in the tabernacle of the congregation, whom Moses and Aaron numbered according to the commandment of the Lord.