'Priests' in the Bible

And Zadok the son of Ahitub, and Ahimelech the son of Abiathar, were the priests; and Seraiah was the scribe;

Jehoida's son Benaiah supervised the special forces and mercenaries, and David's sons were priests.

And hast thou not there with thee Zadok and Abiathar the priests? therefore it shall be, that what thing soever thou shalt hear out of the king's house, thou shalt tell it to Zadok and Abiathar the priests.

Then said Hushai unto Zadok and to Abiathar the priests, Thus and thus did Ahithophel counsel Absalom and the elders of Israel; and thus and thus have I counselled.

And king David sent to Zadok and to Abiathar the priests, saying, Speak unto the elders of Judah, saying, Why are ye the last to bring the king back to his house? seeing the speech of all Israel is come to the king, even to his house.

And Sheva was scribe: and Zadok and Abiathar were the priests: