'Unclean' in the Bible

And I said, Woe unto me! for I am undone; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, Jehovah of hosts.

And a highway shall be there and a way, and it shall be called, The way of holiness: the unclean shall not pass through it; but it shall be for these. Those that go this way even fools, shall not err therein.

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

Depart, depart, go out from thence, touch not what is unclean; go out of the midst of her, be ye clean, that bear the vessels of Jehovah.

And we are all become as an unclean thing, and all our righteousnesses are as filthy rags; and we all fade as a leaf, and our iniquities, like the wind, have carried us away;