Malachi 3:1-3

1“I’m going to send my messenger, and he will clear the way ahead of me. Then the Lord you are looking for will suddenly come to his temple. The messenger of the promise  will come. He is the one you want,” says the Lord of Armies.

2But who will be able to endure the day he comes? Who will be able to survive on the day he appears? He is like a purifying fire and like a cleansing soap.

3He will act like a refiner and a purifier of silver. He will purify Levi’s sons and refine them like gold and silver. Then they will bring acceptable offerings to the Lord.