Now this is not preaching, it's just my own mind rambling and coming up with an idiotic theory.
I think God got bored. Now let me repeat this, it's just my imagination (ow shew! now i've got the song in my head, anyhoo... ). I think He got bored with his Kingdom where everything was just fine. Angels who obeyed, everyone worshipping him and all that. So he created Lucifer. Someone who'd get jealous of him and be rebellious and all that. Because God knows all things, creating Lucifer was in his plan to get entertained, and we all know how arguing can be entertaining. But they needed something to argue about.
And that's where the creation of mankind comes on the picture. You see it's a match between God and Satan. A game. Who can score the highest number of souls? because, unlike angels who dont have a choice, we humans can choose between loving and serving God, or totally ignoring him or worse worshipping Satan, which means the devil won.
I think God, in his wisdom, knew he was gonna lose. That game i mean. But he still gonna kick Lucifer's ass, when the end of times come. Because, we can only be entertaining a little while. Then, he'll just clean up the mess and put his toys back in the box where they belong. Then he gonna get bored again. And have to think of something else to have fun with. But of course He's thought about all that already and has it under control just like anything else.
So yeah, all this heartache has made me a bit cynical. I apologize for being such a blasphemeous creature, i couldnt help it, so sue me! But you'll do agree, this is an interesting one huh?