Numbers 8:23-25

Wycliffe Bible

²³ And the Lord spake to Moses, and said,

²⁴ This is the law of [the] Levites; from five and twenty years and above they shall enter, for to minister in the tabernacle of [the] bond of peace; (This is the law for the Levites; from twenty-five years of age and older, they shall serve in the Tabernacle of the Covenant;)

²⁵ and when they have filled the fiftieth year of age, they shall cease to serve.