Ezekiel 24:11

Then set it empty upon the coals , that it may become hot , and its copper may burn , that its uncleanness may be melted in it , its corrosion consumed .

Then set the empty pot on the coals till it becomes hot and its copper glows, so that its impurities may be melted and its deposit burned away.

Then set it empty upon the coals thereof, that the brass of it may be hot, and may burn, and that the filthiness of it may be molten in it, that the scum of it may be consumed.