I’ve preached several messages that made me glad no one listens to me.
Any pastor who is doing his job will learn more about the Bible. The more biblical knowledge a person gets the more that person will change their beliefs. If your beliefs are not changing then you must not be taking in any new information. If you are not taking in any new information about the Bible you are either 1) not reading it or 2) you already know all of it.
The best way to learn the Bible is to try teaching it. Through years of preaching the Word I am continually confronted with new information, or more context, or more links between verses, ideas, and themes in the Bible, that adjust what I previously believed.
I used to keep recordings of my sermons. I don’t any more. This is for two reasons:
1) The tapes and cd’s were taking up too much room.
2) I couldn’t stand listening to myself teach things I no longer believed and furthermore, I didn’t want anyone who heard me now to hear what I used to say!
Those who have stuck with me over the years and paid attention know how much my doctrine has shifted. But most don’t stick around that long. People choose churches based on whether or not they are told what they already believe. Churches who teach what you already believe are known as “churches with good doctrine.”