Belief in omipowerful supernatural entities who have only communicated with humans through obscure means which rely on personal testament, which is known to be a flawed way of ascertain truth and is inevitably distorted by cultural and environmental influences, is not rational. Adhering partially to the texts that emerged from the political wranglings about who is most closely able to guess at the will of these mythical beings, despite the obvious contradictions and huge amount of evidence to the contrary (The earth is older than 6000 years, evolution, etc etc) is not a sensible basis for making any decisions on, let alone justifying abuse and murder.