Proverbs 25:4 in the World English Bible
Take away the dross from the silver, and material comes out for the refiner.
Context
3 The heaven for height, and the earth for depth, and the heart of kings is unsearchable.
4 Take away the dross from the silver, and there shall come forth a vessel for the finer.
5 Take away the wicked from before the king, and his throne shall be established in righteousness.