'Unclean' in the Bible

Then I said, "Woe is me! For I am undone, because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for my eyes have seen the King, Yahweh of Armies!"

You shall defile the overlaying of your engraved images of silver, and the plating of your molten images of gold. You shall cast them away as an unclean thing. You shall tell it, "Go away!"

A highway will be there, a road, and it will be called The Holy Way. The unclean shall not pass over it, but it will be for those who walk in the Way. Wicked fools will not go there.

Awake, awake, put on your strength, Zion; put on your beautiful garments, Jerusalem, the holy city: for henceforth there shall no more come into you the uncircumcised and the unclean.

Depart, depart, go out from there, touch no unclean thing! Go out of the midst of her! Cleanse yourselves, you who bear the vessels of Yahweh.

For we have all become as one who is unclean, and all our righteousness is as a polluted garment: and we all fade as a leaf; and our iniquities, like the wind, take us away.