Numbers 4:39-41

American Standard Version

³⁹ from thirty years old and upward even unto fifty years old, every one that entered upon the service, for work in the tent of meeting, ⁴⁰ even those that were numbered of them, by their families, by their fathers’ houses, were two thousand and six hundred and thirty. ⁴¹ These are they that were numbered of the families of the sons of Gershon, all that did serve in the tent of meeting, whom Moses and Aaron numbered according to the commandment of Jehovah.