1 Chronicles 24:4

And as the Eleazarites were found to be more numerous for chiefs of mighty men than the sons of Ithamar, therefore he distributed them—for the sons of Eleazar sixteen chiefs for houses of families, and for the sons of Ithamar chiefs for eight houses of families.

And there were found among the sons of Eleazar more chiefs of the mighty ones, than of the sons of Ithamar: and he divided them, sixteen heads of families to the sons of Eleazar, eight according to their families to the sons of Ithamar.