Bible Verses About Metals: Freed from dross by fire

“Son of man, the house of Israel has become dross to Me. All of them are copper, tin, iron, and lead inside the furnace; they are but the dross of silver.

Just as one gathers silver, copper, iron, lead, and tin into the furnace to melt with a fiery blast, so I will gather you in My anger and wrath, leave you there, and melt you.