Jeremiah 6:27-30 - Jeremiah Appointed As An Examiner
27 I have set thee among my people as an assayer, a fortress, that thou mayest know and try their way. 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.