Proverbs 25:4
“Take away the dross from the silver, and there shall come forth a vessel for the finer.”
Several years ago I had the privilege of going to a refinery to see the smelting process for gold. The process was very interesting to someone who had never seen how they refined gold. They took a bucket of what looked like dirt and put it on a sifter, and what remained after they shook it was the larger chunks of what looked like little rocks. They then took what remained and put it in a furnace that had extreme heat. The heat revealed the real gold. You could see the gold and the dross separate from each other so that when it came out of the fire the gold was collected to be sold and the dross was thrown away.