'Unclean' in the Bible

And the multitude also of the cities round about came together to Jerusalem, bringing sick persons and persons beset by unclean spirits, who were all healed.

For from many who had unclean spirits they went out, crying with a loud voice; and many that were paralysed and lame were healed.

And Peter said, In no wise, Lord; for I have never eaten anything common or unclean.

And he said to them, Ye know how it is unlawful for a Jew to be joined or come to one of a strange race, and to me God has shewn to call no man common or unclean.

And I said, In no wise, Lord, for common or unclean has never entered into my mouth.