May burning coals fall on them; may they be thrown into the fire, into miry pits, never to rise. (NIV)
Let burning coals fall upon them; let them be cast into the fire, into floods of water or deep water pits, from which they shall not rise. (AMP)
Let burning coals fall upon them: let them be cast into the fire; into deep pits, that they rise not up again. (KJV)