Jeremiah 6:28-30 Living Bible (TLB)
28 Are they not the worst of rebels, full of evil talk against the Lord? They are insolent as brass, hard and cruel as iron. 29 The bellows blow fiercely; the refining fire grows hotter, but it can never cleanse them, for there is no pureness in them to bring out. Why continue the process longer? All is dross. No matter how hot the fire, they continue in their wicked ways. 30 I must label them “Impure, Rejected Silver,” and I have discarded them.