Either Gods revelation does or doesn’t have some degree of propositional content. If it does, then it can be ‘analyzed’ if we make that content explicit. From there, we can examine the propositional content in such a way that it can either be rejected or accepted. If it can be accepted, then it is true, and if its true, then it’s a fact. And thus, we can comprehend it. This wouldn’t turn on rationalism vs. empiricism – you’d have to argue that revelation doesn’t have propositional content – which is quite a thing to argue – in order to falsify it. And if it’s argued that revelation qualitativly different, then it’s a stretch, if not entirely false to call it propositional, and if it can be known as true or false, then it’s not qualitativly different.