Malachi 3
(2) But 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; (3) And 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; and there shall be they that shall offer unto YHWH offerings in righteousness. (4) Then shall the offering of Judah and Jerusalem be pleasant unto YHWH, as in the days of old, and as in ancient years. (5) And I will come near to you to judgment; and I will be a swift witness against the sorcerers, and against the adulterers, and against false swearers; and against those that oppress the hireling in his wages, the widow, and the fatherless, and that turn aside the stranger from his right, and fear not Me, saith YHWH of hosts. (6) For I YHWH change not; and ye, O sons of Jacob, are not consumed. (7) From the days of your fathers ye have turned aside from Mine ordinances, and have not kept them. Return unto Me, and I will return unto you, saith YHWH of hosts.
Purify and punish are not identical. We seek purification. We do not seek punishment.