Malachi 3
2 Ref But by whom may the day of his coming be faced? and who may keep his place when he is seen? for he is like the metal-tester's fire and the cleaner's soap.
3 Ref He will take his seat, testing and cleaning the sons of Levi, burning away the evil from them as from gold and silver; so that they may make offerings to the Lord in righteousness.
4 Ref Then the offering of Judah and Jerusalem will be pleasing to the Lord, as in days gone by, and as in past years.
5 Ref And I will come near to you for judging; I will quickly be a witness against the wonder-workers, against those who have been untrue in married life, against those who take false oaths; against those who keep back from the servant his payment, and who are hard on the widow and the child without a father, who do not give his rights to the man from a strange country, and have no fear of me, says the Lord of armies.