As a Christian who might have some sympathy with something like the Christian amendment in principle, but who is also a lawyer, I will also say that the proposed language in the OP is just plain bad legal drafting. This phrase in particular--"His revealed will as the supreme law of the land"--was probably just meant to mean something like 'yay for the Bible' or 'the moral and ethical bases of this polity are rooted in the holy Bible,' something like that. But it comes out sounding like a form of Sharia where the Bible is now literally part of the Constitution. Since the Bible is an extremely heterogenous book composed over thousands of years in cultures pretty distinct from ours, and that was never intended to be used as a law code, this is an extremely bad idea.
I mean, the idea that the parable of the wheat and the tares, say, is supposed to some kind of statute, is just painful.
I mean, the idea that the parable of the wheat and the tares, say, is supposed to some kind of statute, is just painful.