The One True Church. Emphasis on the ONE.
A brief passage:
The notion that all religions are just as good as the other is pure and complete trash. This is what we call relativism. Aside from its general politically correct silliness, the logical problem with relativism is that, when taken to its reasonable extreme, it renders all moral order and religion null and void. You see, when you take the first step of saying that "this type of truth is just as good as the next," you do two things: firstly, you invalidate the notion of truth, and secondly, you take a step down the slippery slope of relativism.
Do go read the rest of it.
File Under: Doctrine