The Book of the Prophet Malachi

Behold, I [am] sending My messenger, and He will clear the way before Me. And the Lord whom you [are] seeking shall suddenly come to His temple, even the Angel of the Covenant, in whom you delight. Behold, He comes, says Jehovah of hosts.

But who can endure the day of His coming? And who will stand when He appears? For He [is] like a refiner's fire and like fuller's soap.

And He shall sit as a refiner and purifier of silver; and He shall purify the sons of Levi and purge them like gold and like silver, that they may be presenters of a food offering in righteousness to Jehovah.

Then the food offering of Judah and Jerusalem shall be pleasing to Jehovah, as in the days of old, and as in former years.

And I will come near to you for judgment; and I will be a swift witness against the sorcerers, and against the adulterers, and against those swearing to a lie; and against those who extort from the hired laborer's pay; and turning away the widow, and the fatherless, and the alien, and not fearing Me, says Jehovah of hosts.

For I [am] Jehovah, [I] change not. Because of this, you sons of Jacob are not destroyed.

From the days of your fathers, you have turned aside from My statutes and have not kept [them]. Return to Me, and I will return to you, says Jehovah of hosts. But you say, In what shall we return?