Malachi 3:1-4 New Revised Standard Version (NRSV)
The Coming Messenger
3 See, I am sending my messenger to prepare the way before me, and the Lord whom you seek will suddenly come to his temple. The messenger of the covenant in whom you delight—indeed, he is coming, says the Lord of hosts. 2 But who can endure the day of his coming, and who can stand when he appears?
For he is like a refiner’s fire and like fullers’ soap; 3 he will sit as a refiner and purifier of silver, and he will purify the descendants of Levi and refine them like gold and silver, until they present offerings to the Lord in righteousness.[a] 4 Then the offering of Judah and Jerusalem will be pleasing to the Lord as in the days of old and as in former years.
Malachi 3:1-4 New International Version (NIV)
3 “I will send my messenger, who will prepare the way before me. Then suddenly the Lord you are seeking will come to his temple; the messenger of the covenant, whom you desire, will come,” says the Lord Almighty.
2 But who can endure the day of his coming? Who can stand when he appears? For he will be like a refiner’s fire or a launderer’s soap. 3 He will sit as a refiner and purifier of silver; he will purify the Levites and refine them like gold and silver. Then the Lord will have men who will bring offerings in righteousness, 4 and the offerings of Judah and Jerusalem will be acceptable to the Lord, as in days gone by, as in former years.