But if we believe we know how it's all going to turn out, why wouldn't satan?
Because Lucifer is too arrogant to believe that he would lose - he doesn't have faith in God any longer, so by loss of that faith, Lucifer believes he can beat God...
You have alot of questions - which is good! Blind faith is not what God wants from us.
I would strongly recommend that you continue reading the bible, and as you read, ask God to help you answer these very questions. Keep reading and praying and learning and the answers will come to you in time. I promise you that.
No amount of church-going or theology classes or anything like that can teach you as thoroughly as actually reading the bible and asking God for understanding.
He does, and that is no doubt one aspect of his punishment. His only hope is to somehow, at some point, break the word of God, then he would have a basis for appeal against the sentence he's been given.
Think of the last election, Kerry's only hope for bringing Bush down was to prove Bush was doing something wrong. Consequently, Kerry adopted the position EVERYTHING Bush did was wrong, hoping something would stick.