'Unclean' in the Bible

Then Jesus called his twelve disciples to him and gave them authority over unclean spirits, so that they could drive them out and heal every disease and every illness.

"Whenever an unclean spirit goes out of a person, it wanders through waterless places looking for a place to rest, but finds none.

It is not what goes into the mouth that makes a person unclean. It is what comes out of the mouth that makes a person unclean."

But the things that come out of the mouth come from the heart, and it is those things that make a person unclean.

These are the things that make a person unclean. But eating with unwashed hands doesn't make a person unclean."