'Ashes' in the Bible

and shall cause their voice to be heard over thee, and shall cry bitterly, and shall cast up dust upon their heads, they shall wallow themselves in the ashes:

By the multitude of thine iniquities, in the unrighteousness of thy traffic, thou hast profaned thy sanctuaries; therefore have I brought forth a fire from the midst of thee; it hath devoured thee, and I have turned thee to ashes upon the earth in the sight of all them that behold thee.