Malachi 3:1-2

New Revised Standard Version Catholic Edition

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;