This is not a litmus test for christian beliefs. What I’m about to say isn’t a test for whether someone is Christian or not. Nor is this a way for a person to test how many beliefs they must have to keep their salvation. This isn’t a math equation for figuring out if you’re in-or-out of the faith. This is an illustration that has all the weak spots of word pictures, but that I use to underscore the idea of what is central to historical Christianity and what might be more debatable.