'Impure' in the Bible

But I said, “Oh, Lord God, I have never been defiled. From my youth until now I have not eaten anything that died naturally or was mauled by wild beasts. And impure meat has never entered my mouth.”

They'll fling their silver into the streets, and their gold will be cast away as impure. Their silver and gold won't be able to deliver them during the time of the LORD's wrath. They won't be able to satisfy their appetites or fill their stomachs, because their iniquity has tripped them up."

" 'And the beauty of its ornament {he made into a prideful thing} and made with it their detestable things and their vile idols; therefore I will make it into an impure thing for them.