Malachi 3:1-4

1Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith Yhwh of Armies.

2But who may abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner’s fire, and like fullers’ soap:

3And he shall sit as a refiner and purifier of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto Yhwh an offering in righteousness.

4Then shall the offering of Judah and Jerusalem be pleasant unto Yhwh, as in the days of old, and as in former years.1