1 Chronicles 24:6 And Shemaiah, the son of Nethanel the scribe, who was a Levite, put down their names in writing, the king being present with the rulers, and Zadok the priest, and Ahimelech, the son of Abiathar, and the heads of families of the priests and the Levites; one family being taken for Eleazar and then one for Ithamar, and so on. (Bible in Basic English)