King James Version
From thirty years old and upward even unto fifty years old shalt thou number them, every one that entereth into the service, to do the work of the tabernacle of the congregation.English Standard Version
From thirty years old up to fifty years old, you shall list them, everyone who can come on duty, to do the service of the tent of meeting.Catholic Public Domain Version
from thirty years and above, even to fifty years, of all who enter to the office of their ministry and to the service of the covenant of the testimony