MALACHI 3:3
and he shall sit as a refiner and purifier of silver, and he shall purify the sons of Levi, and purge them as gold and silver; and they shall offer unto the LORD offerings in righteousness.and he shall sit as a refiner and purifier of silver, and he shall purify the sons of Levi, and purge them as gold and silver; and they shall offer unto the LORD offerings in righteousness.