How is religion, specifically Christianity, like a science?

I'm a little ashamed to be posting the following few sentences on the internet.  I'm just starting to write in this blog again, for myself more than anything else.  I suppose I should type this material in a private journal or something, but the attitude of the times is to make everything public, and who am I to disappoint?

I'm ashamed because to publish a piece of writing is to claim some belief in its contents.  And I'm not sure I yet believe anything I'm about to write, in this post or any succeeding.  So, if you happen to stumble on my journal here, please bear that in mind.
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The thought that occurred to me just now, as I was reading Les Miserables, followed from a fascination with the kind of people who become pastors or priests.