Remember man is involved in writing. Hearing is more spiritual than reading and recording.
Humans are involved in writing
everything - even the book you like to regularly quote from. As far as I'm aware, the only document which people claim came straight from heaven; dictated to someone in a trance who had no control over what he wrote, is the book of Mormon.
Being written by a human being does not automatically mean it wasn't inspired by God and cannot be trusted. And I don't agree with you that "hearing is more spiritual than reading and recording" - which doesn't even really make sense. I imagine you're trying to say that the Gospels, written by eyewitnesses who heard Jesus teach, are more reliable than the epistles - but that's not true either.
If you say to us, "I heard God tell me that Paul is false"; how do we know that is true? How would you prove to us that a) you heard a definite voice and b) that it was God and not your subconscious? I'm not saying that you're saying this, I'm trying to give an example. In the same way, if I said to you, "well God spoke to me last night, assured me that Paul's writings are true, and told me to tell you to accept them" - how would you know that that was from God? By your own words, it's "more spiritual" than the Bible; it's even "more spiritual" than my writing about it on here! But if everyone were to go around saying, "
X says they heard from God; whatever they say must be true because God spoke", then we'd all start believing all sorts of things and would change our faith every 5 minutes whenever anyone else came up with a new message.
We need to test prophecies and test the spirits to discern what is from God and what isn't. And the way we test them is by reading and finding out what has already been revealed in Scripture - writings inspired by the Spirit of truth who reveals Jesus, the truth, to us and who does not make mistakes. Accept that or not; that's how it is. Arguing that it should not be that way, won't change anything.