Sityl wrote:"He wants to test us" - If he's omniscient, then he already knows the results before the test begins.
"Evil comes from demons" - and who created those, again?
"In order for free will to mean anything, evil must exist." - sounds like free will is a pretty evil invention, then. Who created free will again?
The hubris required to pretend that an all powerful being sets rules for you to follow and then cares whether or not you'll follow them is mind-boggling.
To be honest. Determinism and free will are not exclusive apparently. I've read something I think was written by Antony Flew saying that God could have created a compatibilist universe.