Priests: Each Course of, had Its President or Chief
Source: TTT
1 Chronicles 24:6, 31
The scribe, Shemaiah son of Nethanel, a Levite, recorded their names in the presence of the king and of the officers: Zadok the priest, Ahimelech son of Abiathar, and the heads of families of the priests and the Levites—one family being taken from Eleazar, and then one from Ithamar. / As their brothers the descendants of Aaron did, they also cast lots in the presence of King David and of Zadok, Ahimelech, and the heads of the families of the priests and Levites—the family heads and their younger brothers alike.
2 Chronicles 36:14
Furthermore, all the leaders of the priests and the people multiplied their unfaithful deeds, following all the abominations of the nations, and they defiled the house of the LORD, which He had consecrated in Jerusalem.