“For by the last words of David the Levites were numbered from twenty years old and above:”
King James Version (KJV)
23:28 Holy things - Holy places, and garments, and vessels, andsacrifices, which were to be washed and cleansed from any filthinessthat might cleave to them.
23:29 All measure - All measures used either in sacred or civil things,the publick standards whereof were kept in the temple; and therefore thecare of keeping them inviolable and producing them upon occasion, mustsneeds belong to the priests, and under them to the Levites, who were toexamine other measures and all things by them, as occasion required; thatso the priests might be at leisure for their higher and greater employments.