And Ele-a´zar the son of Aaron the priest shall be chief over the chief of the Levites, and have the oversight of them that keep the charge of the sanctuary.
from thirty years old and upward even unto fifty years old, every one that entereth into the service, for the work in the tabernacle of the congregation,
These are they that were numbered of the families of the sons of Gershon, of all that might do service in the tabernacle of the congregation, whom Moses and Aaron did number according to the commandment of the Lord.