Setup
Let's first dispense with what Christianity is not. There are many sects of Christianity from the ancient to the very recent. Most Christians, I think, acknowledge that most of these are Christian in a general sense, even if they feel that some of those Christians are "doing it wrong". So I'm not going to accept that Christianity is defined by Catholic dogma or the belief that the Book of Mormon was delivered by an Angel or any other sectarian point of disagreement between Christians.
The question then becomes: what is Christianity in a positive sense? Here's one definition: Follows the teachings of Jesus
This would include Christian Atheists, Jews for Jesus, etc. which many Christians would not consider Christian. So let's add in two more criteria:
- Does not subscribe to the dogma of another faith
- Believes in God
Now, your average modern Christian is going to require the Nicene Creed as well, but this is problematic, since there are important Christians prior to the adoption of the Nicene Creed who did not subscribe to it for one reason or another. Origen, for example, certainly would not have been on the side of the consensus at the Council of Nicaea had he lived that long, and yet I'm aware of very few Christians who would assert that he was not a Christian, so much as he was wrong about some elements of the faith (though there are other Christians who would agree with Origen, further making my point).
It's all about me
Okay, so let me lay out my own cards, here:
- I believe in God
- I'm specifically a non-dogmatic panentheist, so I have no other dogma that I subscribe to
- I respect the teachings of Jesus
But I would say that I fail to live up to those ideals about as much as most Christians that I know
So... I assert that I am a Christian. What say you?
NOTE: This is mostly using me as a proxy. The real reason that I'm not a Christian is that I don't self-identify as one, but I wanted to get at the width and grayness of the line between Christian and non-Christian in this debate.