1 THE COURSES or divisions of the priests, the sons of Aaron, were these: The sons of Aaron: Nadab, and Abihu, Eleazar, and Ithamar.
2 But Nadab and Abihu died before their father and had no children; therefore Eleazar and Ithamar executed the priest's office.
3 And David, with Zadok of the sons of Eleazar and Ahimelech of the sons of Ithamar, divided and distributed them according to their assigned duties.
4 Since there were more chief men found among the sons of Eleazar [because of the misfortunes of Eli, and Saul's slaughter of the priests at Nob] than among the sons of Ithamar, they were divided thus: sixteen heads of fathers' houses of the sons of Eleazar and eight of the sons of Ithamar according to their fathers' houses.
5 Thus were they divided by lot, one group with the other, for there were chiefs of the sanctuary and chiefs of God [high priests] drawn both from the sons of Eleazar and from the sons of Ithamar.
6 Shemaiah the scribe, son of Nethanel, a Levite, recorded them in the presence of the king, the princes, Zadok the priest, Ahimelech son of Abiathar [the priest who escaped being killed at Nob by Saul and fled to David], and the heads of the fathers' houses of the priests and Levites–one father's house being taken alternately for Eleazar and one for Ithamar.