New American Bible
all between thirty and fifty years of age who will join the personnel to work in the tent of meeting;

Douay-Rheims Bible
From thirty years old and upward, unto fifty years old, all that go in to the ministry of the tabernacle of the covenant:

From thirty years old and upward, unto fifty years old, all that go in to the ministry of the tabernacle of the covenant:

Numbers 4:3,23,30,39,43,47 From thirty years old and upward, to fifty years old, of all that go in to stand and to minister in the tabernacle of the covenant. . . .

Numbers 8:24-26 This is the law of the Levites: From twenty-five years old and upwards, they shall go in to minister in the tabernacle of the covenant. . . .

1 Chronicles 23:3,24,26,27 And the Levites were numbered from the age of thirty years, and upwards: and there were found of them thirty-eight thousand men. . . .

1 Chronicles 28:13 And of the divisions of the priests and of the Levites, for all the works of the house of the Lord, and for all the vessels of the service of the temple of the Lord.

Luke 3:23 And Jesus himself was beginning about the age of thirty years: being (as it was supposed) the son of Joseph, who was of Heli, who was of Mathat,

1 Timothy 3:6 Not a neophyte: lest, being puffed up with pride, he fall into the judgment of the devil.