Numbers 4:1-3

Wycliffe Bible

4 And the Lord spake to Moses and to Aaron, and said,

² Take thou the sum, or the number, of the sons of Kohath, from the midst of (the) Levites, by their houses and families,

³ from the thirtieth year and above unto the fiftieth year, of all that enter, that they stand and minister in the tabernacle of the bond of peace. (from thirty years of age up to fifty years old, of all who enter to serve in the Tabernacle of the Covenant.)