2 Samuel 14:4, 22

And when the woman of Tekoa spake to the king, she fell on her face to the ground, and did obeisance, and said, Help, O king.

And Joab fell to the ground on his face, and did obeisance, and blessed the king; and Joab said, To-day thy servant knoweth that I have found favor in thy sight, my lord, O king, in that the king hath performed the request of his servant.