from thirty years old and upward even unto fifty years old, every one that entered upon the service, for service in the tent of meeting.
King James Version (KJV) - Numbers 4:35 >From thirty years old and upward even unto fifty years old, every one that entereth into the service, for the work in the tabernacle of the congregation:
Berean Study Bible (BSB) - Numbers 4:35 >everyone from thirty to fifty years old who came to serve in the work at the Tent of Meeting.