My son is a writer. No, not professionally. He just does it, like me, for fun. He has told me on several occasions that he thinks of himself what I think of myself. We've never had an original idea. We read stuff and it spawns an idea or we hear something that links to something else already in our heads that takes us down a thought path, but to actually come up with a new idea? Doesn't really happen.
Here's the thing. I'm not at all sure it should. More importantly, when it comes to doctrine, Scripture, and the like, I think it had better not.
Jesus said that He would send the Holy Spirit to His followers. The Spirit would "teach you all things" (John 14:26). He said, "When He, the Spirit of truth, comes, He will guide you into all the truth." (John 16:13)
Based on that, I have to worry when Christians come into "new truth". If Jesus was right and the Holy Spirit leads His own into "all the truth", what would make me think that He leads me into a truth that no one else had encountered? What took Him so long? Why did He wait? Instead, I believe that "all truth" can be traced from the beginning of the Church through today. I believe there is a "thin red line", so to speak, that has been the truth all along. Sometimes it is very thin, almost obscured by the error. Sometimes it is bold, a "majority rule" view. But if, indeed, Jesus was right about the Holy Spirit, then it seems incomprehensible to me that 1) the truth among genuine believers ever fully goes away in history and 2) none of us would ever encounter an original thought, a new idea, a brand new doctrine.
It's a tool I use when I study Scripture, one of the measures of whether or not I am thinking about what I'm reading correctly. Is this new? Or is it straight out of history as it is straight out of the Bible? Because when it comes to God's truth, I don't want a new idea. I want His original intent. Authors may or may not come up with genuinely new ideas, but truth -- God's truth -- is forever. We shouldn't be coming up with original thought there.