What does Ezekiel 22:20 mean?

Just like people gather silver, copper, iron, lead, and tin into a furnace to melt them with fire, that's how I'll gather you in my anger and fury. I'll throw you in and melt you down. Ezekiel 22:20 - Modern Text Bible

(The image is of God using the heat of judgment to purify or destroy, just as metalworkers melt down metals to remove impurities.)