I myself think demons were created by us. i think that whoever first wrote about demons in the bible is the one who first created a demonic looking thought form, and from there, other people who believed in the bible added their own energy into it, and strengthened the demons. i think that the perfect way to destroy a demon would be to first make sure you know what demon you're dealing with (the name) and then do research, and find out if anyone in the bible had banished it, and try using their technique. try to find key weak spots. every demon is different, since with each demon there's a different story. what do you think?

I edited and added one more option (all or none of the above) because I couldn't see the results unless I clicked on 'view results' and that was getting on my nerves.- CF.