My acid test for whether a religious belief is justified (to me) is "Why is this rule here?". Lying, murder, adultery are against the rules because they harm other people. In christianity Jesus summed it up very simply - love your neighbour as yourself and the rest will follow naturally from this. If you love and have compassion for another person, you will try to avoid hurting them. Any other rules are pointless - either they naturally occur from following the main rule - or they are irrelevant nonsense that came from the minds of people. The old testament tells us all sorts about what sort of food we should and should not eat, but we don't go around lambasting people about their choice of food.

Bagpuss