Numbers 3:32

And the chief over the chief of the Levites, [was] Eleazar the son of Aaron the priest, appointed to keep the charges of the holy things.

And Eleazar 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.

Eleazar the son of Aaron the priest shall be prince of the princes of the Levites, with the oversight of those who keep the requirements of the sanctuary.