Exorcism is not an appropriate treatment for getting rid of voices. At best it will change the content. Like instead of "hey I'm the government I'm harassing you lol" it'll be like "hey I'm some powerful demon straight outta hell I'm harassing you lol". Government or demons, it's basically the same.
Though in some situations reciting Bible verses may give you comfort, if that works for you (it wouldn't work for me). Maybe by reducing anxiety the symptoms can be reduced. If medication alone doesn't work well, maybe cognitive behaviour therapy would.
In my case, I see the state as the biggest threat to humanity. The state is constantly harassing people, killing people in wars, responsible for the biggest crimes in the history of mankind, threatening workers with violence if they don't want to pay for wars, etc. So if I would hear voices, I maybe would also assume I have government computers in my head. Demons are a joke compared with the state.
You may already have guessed that I consider myself libertarian.
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Asperger syndrome (diagnosed), schizoid personality disorder (self-diagnosed), dysthymia (diagnosed)