2 Samuel 15:32-36

It happened as David was coming to the summit, where God was worshiped, that behold, Hushai the Archite met him with his coat torn, and dust on his head.

And David said to him, “If you go over with me, then you will become a burden to me.

But if you return to the city and say to Absalom, ‘I will be your servant, O king; even as I was your father’s servant in time past, so now I will also be your servant,’ then you can foil the advice of Ahithophel for me.

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

Behold their two sons are there with them, Ahimaaz, Zadok’s son and Jonathan, Abiathar’s son; and by them you shall send me everything that you hear.”