35 Won’t Zadok and Abiathar the priests be there with you? So whatever you hear from the king’s palace, you’re to report to Zadok and Abiathar the priests.
2 Samuel 15:35 Cross References - ISV
2 Samuel 17:15-16
15 So Hushai told Zadok and Abiathar, the priests, what Ahithophel had suggested to Absalom and the elders of Israel. He also reported what he himself had proposed. Hushai said,
16 “Quick! Get word to David! Tell him not to spend the night at the crossings that lead to the desert. Instead, he must cross the Jordan River immediately. That way, if he crosses the river, the king and his entourage will survive.”