"Madam You are very mistaken."
I think it is you who are mistaken. Do I look like a "madam" to you?
"Unfortunately the devil exists."
The thing is, there is nothing to prove that claim. I could say there's a living pink unicorn in my drawer, but since I can give you no proof you don't have to believe me. The same goes for gods, ghosts or demons. Since you can't provide any proof for those claims I don't need to take them as facts.
"According to the Bible"
The fairytale book. There are some quite interesting stories in it. Not that they are in any way more credible than those of say Stephen King, J.K. Rowling or Shakespeare but interesting nevertheless. The people in the bronze age did have quite an imagination; talking donkeys and snakes, zombies and fairies. ;) Pretty good stuff, alas they are still mere stories, and not based on reality.
Sorry, I meant to write it Alexa Nova! She is madame.