Just to put my two cents in. . .

Just because we've gone and made a mess of things (i.e.: the revelation of God) doesn't give us license to ignore it completely. It’s true enough that there are unclear passages in the bible, and there are also other claimed holy texts that people say are the "Word of God". I feel, however, that to say because the answers aren't immediately clear that whole thing is hopeless and now we should just do whatever feels right and there are no real moral absolutes . . . that's a dangerous path to be on.