4:3From thirty years old and upward even until fifty years old, all that enter into the host, to do the work in the tabernacle of the congregation.

4:30From 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.

4:47From thirty years old and upward even unto fifty years old, every one that came to do the service of the ministry, and the service of the burden in the tabernacle of the congregation,

8:23And the LORD spake unto Moses, saying,

8:24This is it that belongeth unto the Levites: from twenty and five years old and upward they shall go in to wait upon the service of the tabernacle of the congregation:

8:25And from the age of fifty years they shall cease waiting upon the service thereof, and shall serve no more:

8:26But shall minister with their brethren in the tabernacle of the congregation, to keep the charge, and shall do no service. Thus shalt thou do unto the Levites touching their charge.