Brother @Oniraphaeleu. That's really a close minded belief to be stuck in. I mean, really close minded. And I do not want to call names, make fun or any of these things. I'd really like to help you out with your belief.

There is no such thing as an external Devil as there is no such thing as an external God. I would only suggest to you to listen to some of Neville Goddard teachings about the Bible and the Real Meaning behind it. A good place to start is this: Neville Goddard - Consciousness is the Only Reality.

Religion is supposed to Unite people together, but the way I understand you practice it is the opposite. The Glory and Kingdom of God is within you as is within Every other person in this beautiful world of ours.
There are no such things as devils and demons if you don't create them for yourself, out of your own fear.

I'd like to discuss this more if you're up for it. But truly, take a good inventory of your current belief. It's not healthy in my opinion.

All the Peace to you brother!