From (a) 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.
(a) The Levites were counted at three times, first at a month old when they were consecrated to the Lord, next at 25 years old when they were appointed to serve in the tabernacle, and 30 years old to bear the burdens of the tabernacle.