ACV(i)
24 This is that which belongs to the Levites: From twenty-five years old and upward they shall go in to wait upon the service in the work of the tent of meeting.
25 And from the age of fifty years they shall cease waiting upon the work, and shall serve no more,
26 but shall minister with their brothers in the tent of meeting, to keep the charge, and shall do no service. Thus shall thou do to the Levites concerning their charges.