I've come across some interesting people. A guy I served in the military with told me a story about how he tried to sell his soul over a girl (if memory serves me correctly). He said he was faced with a red door at the bottom of some stairs. He had the feeling that if he entered the door he would have no way back. I still don't know if I believe this. I do believe in God. I also don't think the bible would give you step-by-step instructions on how to sell your soul. It may be more figurative than literal. Like Judas' betrayal of Jesus. They gave him money in return for turning Jesus over to them. I wouldn't recommend trying just in case.