Ezra 8:2

And the children of Amram; Aaron, and Moses, and Miriam. The sons also of Aaron; Nadab, and Abihu, Eleazar, and Ithamar. Eleazar begat Phinehas, Phinehas begat Abishua, And Abishua begat Bukki, and Bukki begat Uzzi, And Uzzi begat Zerahiah, and Zerahiah begat Meraioth, Meraioth begat Amariah, and Amariah begat Ahitub, And Ahitub begat Zadok, and Zadok begat Ahimaaz, And Ahimaaz begat Azariah, and Azariah begat Johanan, And Johanan begat Azariah, (he it is that executed the priest's office in the temple that Solomon built in Jerusalem:) And Azariah begat Amariah, and Amariah begat Ahitub, And Ahitub begat Zadok, and Zadok begat Shallum, And Shallum begat Hilkiah, and Hilkiah begat Azariah, And Azariah begat Seraiah, and Seraiah begat Jehozadak, And Jehozadak went into captivity, when the LORD carried away Judah and Jerusalem by the hand of Nebuchadnezzar.

Now these are the divisions of the sons of Aaron. The sons of Aaron; Nadab, and Abihu, Eleazar, and Ithamar. But Nadab and Abihu died before their father, and had no children: therefore Eleazar and Ithamar executed the priest's office. And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service. And there were more chief men found of the sons of Eleazar than of the sons of Ithamar, and thus were they divided. Among the sons of Eleazar there were sixteen chief men of the house of their fathers, and eight among the sons of Ithamar according to the house of their fathers. Thus were they divided by lot, one sort with another; for the governors of the sanctuary, and governors of the house of God, were of the sons of Eleazar, and of the sons of Ithamar. And Shemaiah the son of Nethaneel the scribe, one of the Levites, wrote them before the king, and the princes, and Zadok the priest, and Ahimelech the son of Abiathar, and before the chief of the fathers of the priests and Levites: one principal household being taken for Eleazar, and one taken for Ithamar.