Q:

Desperate for help about intent and my fears

I am hoping for help as I’m feeling really horrible right now. I’m not a Buddhist but I have OCD (Obsessive-Compulsive Disorder) that is focussed on religion. I am sorry for such a long post but I don’t know how else to explain this.
My main fears have always revolved around being the worst person and committing unforgivable sins. When I learned about the unforgivable sin in Christianity I became absolutely ruined with fear of committing it. I do not want to commit it but my OCD drove me insane with this. I am now having these same issues with Buddhism. I think despite not being Buddhist, my fear is that it could be true and I don’t want to do the worst sins.
I have to say this since my fear is about it:
I do not want anyone to die no matter what. Please do not kill anyone no matter what.
My fear is the five cardinal sins/heinous crimes. I keep getting thoughts about this all the time and I don’t want them. I am scared because I will get thoughts about for example killing my father and I absolutely do not want that but the thought worries me so much. What is now making things so much worse is I feel like when I have a thought I am saying things out loud/whispering them by moving my lips. I don’t think I am but I keep thinking what if I am? So I have thoughts like “kill my father” and I fear I am mumbling this and someone will see me doing this and then they will kill my father. This makes me feel like it’s because of me that they killed them. Like I contributed to them dying. But I have no intention for them to die. It’s gotten to the point this happens constantly and I try to cover my mouth everywhere, I am constantly having to say “Do not kill” after every bad thought I have. I feel like my head will explode. 
I think in Buddhism it is the intention behind an action that would result in karma. So I tell myself I have no intention to cause harm to my father but when I get these thoughts and feel like maybe I said something like “don’t do X or else kill father” but I want to do X so I try to counter this/cancel it out by thinking/saying “I have to do X or else kill father” but then maybe I cannot do X or don’t want to do X anymore (X can be something as simple as drinking milk) so now I feel like I CHOSE to say that and am willfully going against it so then I am responsible for someone killing my father even though I don’t intend for any harm to my father. I hope this makes sense I am so sorry it’s difficult to explain this.
I am also having the same fear about the heinous crime of killing an Arhat and I DO NOT want to kill them and have no intention for them to die.
I am hoping you can help me in:
-   Would I be committing these heinous crimes/sins if I don’t have any intention to kill/cause harm? Even if I willfully think something/say something and someone kills because of it – I don’t have intention to kill and in my heart I don’t want to hurt anyone.
-   Is my intention what counts? It’s what I am telling myself “I don’t intend for anything bad to happen”
Thank you for reading all this I really just don’t want any of this to happen. I don’t want these thoughts and I don’t want to cause harm to anyone. I would be very grateful if anyone can help me.

A:

"Would I be committing these heinous crimes/sins if I don’t have any intention to kill/cause harm? Even if I willfully think something/say something and someone kills because of it – I don’t have intention to kill and in my heart I don’t want to hurt anyone. - Is my intention what counts? It’s what I am telling myself “I don’t intend for anything bad to happen."

In Buddhism, it's the intention behind an action that counts. It's the intention that's "kamma-potent" and what causes future effects to take place. 
Harming or killing another living being can only happen with an impure mind, i.e. a mind that acts with intentions of anger, hatred, ill-will.
If your intention is wholesome, i.e. based in renunciation, good-will, harmlessness and a sincere and honest wish to help other beings, then only wholesome future resultants will take place. 
Please read about "Right Intention (Samma Sankappa)", p. 26 in "The Noble Eightfold Path", by Ven. Bhikkhu Bodhi and the Twin Verses about "Intention", p. 58, in The Illustrated Dhammapada.

"...I have OCD (Obsessive-Compulsive Disorder) that is focussed on religion..."

Are you in any medical or therapeutical treatment? If not, you might want to see a therapist regarding the OCD.

