Proverbs 25:4
Remove the dross from the silver, and material for the silversmith will emerge;
Proverbs 17:3
The crucible is for refining silver and the furnace is for gold, likewise the Lord tests hearts.
Isaiah 1:25-27
I will attack you; I will purify your metal with flux. I will remove all your slag.
2 Timothy 2:20-21
Now in a wealthy home there are not only gold and silver vessels, but also ones made of wood and of clay, and some are for honorable use, but others for ignoble use.
Ezekiel 22:18
"Son of man, the house of Israel has become slag to me. All of them are like bronze, tin, iron, and lead in the furnace; they are the worthless slag of silver.
Malachi 3:2-3
Who can endure the day of his coming? Who can keep standing when he appears? For he will be like a refiner's fire, like a launderer's soap.
1 Peter 1:7
Such trials show the proven character of your faith, which is much more valuable than gold -- gold that is tested by fire, even though it is passing away -- and will bring praise and glory and honor when Jesus Christ is revealed.