I'm writing a script and there's a question I want one character to ask another but for nearly a month, I just can't construct the question even though I know what I want to ask. Basically, I want to ask "what part of the body is to blame for sin?", as in, what causes sin to happen. but that doesn't sound good to me, so I thought maybe "what is the origin of sin?" But then my answer to that doesn't make sense. My answer is basically "The head, vessel of all impure thoughts that culminates into sin".
Can someone help frame this question better? I'd be elated