Hah! I have said "Fuck you, holy spirit! I renounce you completely!" many times, which according to the bible is the worst sin of all
If we don't have control over what we think, & therefore your actions, how is it I can be punished for being a product of my environment?
DONT WHATEVER YOU DO, THINK ABOUT A PINK BANANA. ITS A DEADLY SIN IF YOU DO.
Opps, sorry folks, did you think about that pink banana? Off to hell with you.
Thinking, believing and doing are completely things.
First off the definition of sin is disappointing God. Literally.
For Christians:
Sin is in the heart, if for example some virus took over your body and caused you to rape, pillage and murder, and you had no control over your actions, and neither did you set it up/arrange to set it up for yourself. Then you have not sinned(though your body is unclean and needs to be purified-baptism/shower(wait until evening of next day)).
Only if you in your heart, you want to do the action can it be considered a sin.
Essentially: You've been found wanting for unholy things and in doing so have sinned.
For Muslims/Jews:
Sin is in the action, you can be tempted like crazy and want to do all sorts of things but until you actually do something against the explicit commandment of God you have not sinned.
Essentially: You've been found breaking the commandments of God and in doing so have sinned.