1st Chronicles Chapter 24 Young's Literal Translation
and there are found of the sons of Eleazar more for heads of the mighty men than of the sons of Ithamar; and they distribute them: Of the sons of Eleazar, heads for a house of fathers, sixteen; and of the sons of Ithamar, for a house of their fathers, eight.
And Shemaiah son of Nethaneel the scribe, of the Levites, writeth them before the king and the princes, and Zadok the priest, and Ahimelech son of Abiathar, and heads of the fathers, for priests and for Levites: one house of a father being taken possession of for Eleazar, and one being taken possession of for Ithamar.
These `are' their appointments for their service, to come in to the house of Jehovah, according to their ordinance by the hand of Aaron their father, as Jehovah God of Israel, commanded them.
and they cast, they also, lots over-against their brethren the sons of Aaron, before David the king, and Zadok, and Ahimelech, and heads of the fathers, for priests and for Levites; the chief father over-against his younger brother.