Malachi 3:2-3
But who can endure the day of His coming? And who can stand when He appears? For He will be like a refiner’s fire, like a launderer’s soap. / And He will sit as a refiner and purifier of silver; He will purify the sons of Levi and refine them like gold and silver. Then they will present offerings to the LORD in righteousness.

Isaiah 1:25
I will turn My hand against you; I will thoroughly purge your dross; I will remove all your impurities.

Jeremiah 6:29-30
The bellows blow fiercely, blasting away the lead with fire. The refining proceeds in vain, for the wicked are not purged. / They are called rejected silver, because the LORD has rejected them.”

Zechariah 13:9
This third I will bring through the fire; I will refine them like silver and test them like gold. They will call on My name, and I will answer them. I will say, ‘They are My people,’ and they will say, ‘The LORD is our God.’”

Proverbs 17:3
A crucible for silver and a furnace for gold, but the LORD is the tester of hearts.

Isaiah 48:10
See, I have refined you, but not as silver; I have tested you in the furnace of affliction.

1 Peter 1:7
so that the proven character of your faith—more precious than gold, which perishes even though refined by fire—may result in praise, glory, and honor at the revelation of Jesus Christ.

Revelation 3:18
I counsel you to buy from Me gold refined by fire so that you may become rich, white garments so that you may be clothed and your shameful nakedness not exposed, and salve to anoint your eyes so that you may see.

1 Corinthians 3:12-15
If anyone builds on this foundation using gold, silver, precious stones, wood, hay, or straw, / his workmanship will be evident, because the Day will bring it to light. It will be revealed with fire, and the fire will prove the quality of each man’s work. / If what he has built survives, he will receive a reward. ...

Hebrews 12:29
“For our God is a consuming fire.”

Matthew 3:11-12
I baptize you with water for repentance, but after me will come One more powerful than I, whose sandals I am not worthy to carry. He will baptize you with the Holy Spirit and with fire. / His winnowing fork is in His hand to clear His threshing floor and to gather His wheat into the barn; but He will burn up the chaff with unquenchable fire.”

Malachi 4:1
“For behold, the day is coming, burning like a furnace, when all the arrogant and every evildoer will be stubble; the day is coming when I will set them ablaze,” says the LORD of Hosts. “Not a root or branch will be left to them.”

Isaiah 31:9
Their rock will pass away for fear, and their princes will panic at the sight of the battle standard,” declares the LORD, whose fire is in Zion, whose furnace is in Jerusalem.

Jeremiah 9:7
Therefore this is what the LORD of Hosts says: “Behold, I will refine them and test them, for what else can I do because of the daughter of My people?

Zephaniah 1:3
“I will sweep away man and beast; I will sweep away the birds of the air, and the fish of the sea, and the idols with their wicked worshipers. I will cut off mankind from the face of the earth,” declares the LORD.