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As our morals progress, so do the way we read these books.
A catholic in 1200 AD would have found nothing wrong with burning someone alive for "witchcraft" or having sex before marriage, in fact they would find it being Righteous.
Yet today, using the exact same book and religion, you would chose to read it differently...
That is only proof that religion falls in line or evolves with our norms and morals, NOT the other way around