Malachi 3:2-3

MLV(i) 2 But who can abide the day of his coming? And who will stand when he appears? For he is like a refiner's fire and like launder's 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 will offer to Jehovah offerings in righteousness.