2 Samuel 15:32-34

32And it came to pass, that when David was come to the top of the ascent, where God was worshipped, behold, Hushai the Archite came to meet him with his coat rent, and earth upon his head:

33And David said unto him, If thou passest on with me, then thou shalt be a burden unto me:

34but if thou return to the city, and say unto Absalom, I will be thy servant, O king; as I have been thy father’s servant in time past, so will I now be thy servant: then shalt thou defeat for me the counsel of Ahithophel.