Proverbs 25:4
Take away the waste from silver, and a vessel will come out for the silver-worker.
Proverbs 17:3
The heating-pot is for silver and the oven-fire for gold, but the Lord is the tester of hearts.
Isaiah 1:25-27
And my hand will again be on you, washing away what is unclean as with soap, and taking away all your false metal;
2 Timothy 2:20-21
Now in a great house there are not only vessels of gold and silver, but others of wood and earth, and some which are honoured and some without honour.
Ezekiel 22:18
Son of man, the children of Israel have become like the poorest sort of waste metal to me: they are all silver and brass and tin and iron and lead mixed with waste.
Malachi 3:2-3
But by whom may the day of his coming be faced? and who may keep his place when he is seen? for he is like the metal-tester's fire and the cleaner's soap.
1 Peter 1:7
So that the true metal of your faith, being of much greater value than gold (which, though it comes to an end, is tested by fire), may come to light in praise and glory and honour, at the revelation of Jesus Christ: