Proverbs 25:4
Remove the dross from the silver, and there cometh forth, to the refiner, a vessel:
Proverbs 17:3
Fining-pot for silver, crucible for gold, but, he that trieth hearts, is Yahweh.
Isaiah 1:25-27
That I may turn my hand against thee, And smelt away, as with potash, thy dross, And remove all thine alloy;
2 Timothy 2:20-21
But, in a great house, there are not only gold and silver vessels, but, also wooden and earthen: and, some, indeed, for honour, while, some, are for dishonour:
Ezekiel 22:18
Son of man, The house of Israel hath become to me, dross, - They all are copper and tin and iron and lead in the midst of a furnace, The dross of silver, have they become.
Malachi 3:2-3
But who may endure the day of his coming? And who is he that can stand when he appeareth? For he is like a refiner's fire, and like fullers' alkali;
1 Peter 1:7
In order that the proving of your faith - much more precious than of gold that perisheth even though, by means of fire, it is proved - may be found unto praise and glory and honour in the revealing of Jesus Christ, -