Darby(i)
28 They are all the most rebellious of rebels, going about with slander: they are bronze and iron; they are all corrupters.
29 The bellows are burned, the lead is consumed by the fire; they have melted, and melted in vain; and the bad are not plucked away.
30 Reprobate silver shall they call them, for Jehovah hath rejected them.