Malachi 3:1-3 American Standard Version (ASV)
3 Behold, I send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, will suddenly come to his temple; [a]and the [b]messenger of the covenant, whom ye desire, behold, he cometh, saith Jehovah of hosts. 2 But who can abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner’s fire, and like fullers’ soap: 3 and he will sit as a refiner and purifier of silver, and he will purify the sons of Levi, and refine them as gold and silver; and they shall offer unto Jehovah offerings in righteousness.