'Impurity' in the Bible

They shall cast their silver in the streets, and their gold shall be as an impurity: their silver and their gold shall not be able to deliver them in the day of Jehovah's wrath; they shall not satisfy their souls, neither fill their belly; for it hath been the stumbling-block of their iniquity.

And he set in majesty his beautiful ornament; but they made therein the images of their abominations and of their detestable things: therefore have I made it an impurity unto them.