Proverbs 25:4
Take away the dross from the silver, and there comes forth a vessel for the refiner.
Proverbs 17:3
The refining pot is for silver, and the furnace for gold, but LORD tries the hearts.
Isaiah 1:25-27
And I will turn my hand upon thee, and thoroughly purge away thy dross, and will take away all thy tin.
2 Timothy 2:20-21
Now in a great house there are not only gold and silver vessels, but also wood and earthen, and some for esteem and some for disesteem.
Ezekiel 22:18
Son of man, the house of Israel has become dross to me. All of them are brass and tin and iron and lead, in the midst of the furnace. They are the dross of silver.
Malachi 3:2-3
But who can abide the day of his coming? And who shall stand when he appears? For he is like a refiner's fire, and like fuller's soap.
1 Peter 1:7
so that the proof of your faith, much more precious than gold that perishes, and though proven by fire, may be found for praise and esteem and for glory at the revealing of Jesus Christ.