Ezekiel 24:9-12

Therefore thus saith the Lord Jehovah: Woe to the bloody city! I also will make the pile great. Heap on the wood, make the fire hot, boil well the flesh, and make thick the broth, and let the bones be burned. Then set it empty upon the coals thereof, that it may be hot, and the brass thereof may burn, and that the filthiness of it may be molten in it, that the rust of it may be consumed. She hath wearied herself with toil; yet her great rust goeth not forth out of her; her rust goeth not forth by fire.