“I have made you a tester of metals among my people,
that you may know and test their ways.
They are all stubbornly rebellious,
going about with slanders;
they are bronze and iron;
all of them act corruptly.
The bellows blow fiercely;
the lead is consumed by the fire;
in vain the refining goes on,
for the wicked are not removed.
Rejected silver they are called,
for the Lord has rejected them” (Jeremiah 6:16–30)
When God is after silver, bronze won’t do. Jeremiah, as God’s tester of metals, puts Judah into the furnace. During smelting, lead is added and the bellows are blown to introduce oxygen. This oxidizes the lead, so that it acts as flux, combining with impurities to form slag to be removed. All this is done in vain with Judah. The impurities cannot be removed because impurities are all that there are. Judah is all tarnish and no silver. She isn’t a soft malleable precious metal like silver or gold, mixed with some impurities. She is rebellious bronze and stubborn iron all the way through. Judah isn’t a diamond in the rough; she is a lump of coal.
Just because fool’s gold sparkles doesn’t make it valuable. Judah puts on a show of ceremonial obedience, but under the costume, her disobedience goes all the way to the heart (Jeremiah 6:16–20). Judah isn’t a dirty lamb in need of cleaning; she is a goat. Her sacrifices are impure because she is impure. The ore doesn’t need to be purified; it needs to be miraculously transformed.
Are you gold? Are you silver? When you baptize a goat, you don’t get a sheep, you get a wet goat. Many professing Christians don’t need sanctification; they need regeneration. They don’t need to be purified; they need to be born again as a new creation. They need the Midas touch of King Jesus to graciously transform them from being rebellious bronze to repentant silver, from being impure iron to precious gold.
Because Jesus bore the fire of judgment, all who trust in Him are no longer part of the impure ore of this earth doomed for eternal flames; instead, they are precious gold, being refined for the new heaven and the new earth. The flames of purification temporarily burn now for the saints, whereas the flames of destruction will burn eternally for the wicked. If you have not been touched by the King, the flames of this world do nothing for you but expose the impurity that you are.