Not long after the sabbath day incident a man
was brought to Jesus who was blind and dumb.

We may note, regarding this miracle, that demons
take control of a person through the nervous
system. By oppressing the auditory nerve, a man
becomes deaf, same with the optic nerve he is
then blind. In worse cases the demon may even
take control over a man's mind so that he loses
his senses or ability to reason.