If Adam was a historical individual, then the Bible makes authoritative claims about all of humanity and indeed all of the cosmos. It can, at least in theory, be falsified, and it is thus a legitimate topic of dialectical discourse. It is rational and not a retreat to commitment. If Adam was not a historical individual, and if instead the Genesis account is a sort of mythical story which was employed in order to make a uniquely religious point, then Christianity is necessarily rendered merely metaphorical, expressing truths of the human condition through symbols. The Bible in this case is no longer an authoritative account of human origins, history, and final destiny. It no longer addresses all men in all places and times, but rather expresses one faith-narrative that seeks to convey a meaningful but wholly internal truth.