3  From ^athirty 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.

  24  These were the sons of Levi after the house of their fathers; even the chief of the fathers, as they were counted by ^bnumber of names by their polls, that did the work for the service of the house of the Lord, from the age of twenty years and upward.

  16  Beside their genealogy of males, from ^athree years old and upward, even unto every one that entereth into the house of the Lord, his daily portion for their service in their charges according to their courses;