[Fyron]

dmm said:
Without these things, morality becomes strictly a matter of opinion...

Christian morality is just as much a matter of opinion as that of any other religion, or humanist moral systems. How can you rightfully assert that the moral system of one arbitrary religion is somehow the absolute truth? You can make such assertions about any religious moral system; it doesn't mean one is somehow more true or better than others.

Morality does not derive from religion; religious doctrine generally mimics morality.