from thirty years old and above, even to fifty years old, everyone who entered the service for work in the tabernacle of meeting--
Numbers 4:39
Surrounding context
4:38 And those who were numbered of the sons of Gershon, by their families and by their fathers' house,
4:39 from thirty years old and above, even to fifty years old, everyone who entered the service for work in the tabernacle of meeting--
4:40 those who were numbered by their families, by their fathers' house, were two thousand six hundred and thirty.