Absalom Scripture - 2 Samuel 15:34

But 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 hitherto, so [will] I now also [be] thy servant: then mayest thou for me defeat the counsel of Ahithophel.

Link: https://bible-history.com/studybible/2+Samuel/15/