'Furnace' in the Bible

The house of Israel hath been to Me for dross, All of them are brass, and tin, and iron, and lead, In the midst of a furnace -- dross hath silver been,

A gathering of silver, and brass, and iron, and lead, and tin, Unto the midst of a furnace -- to blow on it fire, to melt it, So do I gather in Mine anger and in My fury, And I have let rest, and have melted you.

As the melting of silver in the midst of a furnace, So are ye melted in its midst, And ye have known that I, Jehovah, I have poured out My fury upon you.'