Re "Go to the devil, you f*ck" In the heat of outrage, I've more than once felt like wishing that kind of thing on someone (and then promptly confessed my sin to God). In order for that wish to be granted, I couldn't be a Christian; I'd have to be in league with the devil.
Understood. This is one of the most difficult transgressions for me to forgive. I prefer no ill will to anyone, lest they do unconsciable harm to others.