Mark 1:23
1:23 Just then there was a man in their synagogue with an unclean spirit, and he cried out,
Mark 1:26
1:26 After throwing him into convulsions, the unclean spirit cried out with a loud voice and came out of him.
Mark 7:2
7:2 And they saw that some of Jesus’ disciples ate their bread with unclean hands, that is, unwashed.