'Priests' in the Bible

Zadok the son of Ahitub and Ahimelech the son of Abiathar were the [chief] priests, and Seraiah was the scribe;

Are not Zadok and Abiathar the priests with you there? So it shall be that every word you hear from the king’s palace, you shall report it to them.

Then Hushai said to Zadok and Abiathar the priests, “This is the advice that Ahithophel gave to Absalom and the elders of Israel, and this is the advice that I have given.

Then King David sent word to Zadok and to Abiathar the priests, saying, “Say to the elders of Judah, ‘Why are you the last to bring the king back to his house [in Jerusalem], since the word of all Israel has come to the king, and to his house?

Sheva was the scribe; and Zadok and Abiathar were priests;