Jeremiah 6:29

29The abellows blow fiercely;
the lead is consumed by the fire;
bin vain the refining goes on,
for the wicked are not removed.

Ezekiel 24:11-13

11Then set it empty upon the coals, that it may become hot, and its copper may burn, cthat its uncleanness may be melted in it, its corrosion consumed. 12 dShe has wearied herself with toil;
The meaning of the Hebrew is uncertain
its abundant corrosion does not go out of it. Into the fire with its corrosion!
13On account of your unclean lewdness, because I would have cleansed you and you were not cleansed from your uncleanness, fyou shall not be cleansed anymore till gI have satisfied my fury upon you.
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