2 Samuel 15:30-34

And David was going up the ascent of the Mount of Olives, weeping as he went, and his head was covered, and he was walking barefoot. Then all the people who were with him each covered his own head, and they were going up, weeping as they went.

Now someone informed David, saying, “Ahithophel is among the conspirators with Absalom.” And David said, “Lord, please make the advice of Ahithophel foolish.”

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.