An Appeal to Authority does not mean you should not listen. It simply is NOT logical proof of anything. You cannot say because SO AND SO said this it must be true.
What someone says does not prove anything other than they said words and that they MAY believe what they said. People lie, so it can't even be proven that they meant it.
So an APPEAL TO AUTHORITY by no means is telling you the person is wrong. It simply means that because they said it does not make it TRUE.
You still have to use some common sense, quickly analyze probabilities (instinctively) based upon the knowledge you have an make a decision.
There is older scripture than that by the way. How far back have you gone?
EDIT: And I did up vote you. This is not intended as an attack of any kind. I appreciate you taking the time to respond. I've actually had people tell me those exact things in verbal discussions with priests. Yes, I am friends with priests. Lutheran, Presbyterrian, Catholic. I was Director of IT at a Hospice and I'd sit and chat with those three priests daily at lunch. They were some of my closest friends there.