'Dross' in the Bible

Thou puttest away all the wicked of the earth like dross: Therefore I love thy testimonies.

Take away the dross from the silver, And there cometh forth a vessel for the refiner:

Fervent lips and a wicked heart Are like an earthen vessel overlaid with silver dross.

Thy silver is become dross, thy wine mixed with water.

and I will turn my hand upon thee, and thoroughly purge away thy dross, and will take away all thy tin;

Son of man, the house of Israel is become dross unto me: all of them are brass and tin and iron and lead, in the midst of the furnace; they are the dross of silver.

Therefore thus saith the Lord Jehovah: Because ye are all become dross, therefore, behold, I will gather you into the midst of Jerusalem.