Wasn't it OK for old testament men to have sex with slaves and servants?
Sin is that which creates social disruption or something a culture has no institutions to deal with.
Religion, propriety and law are indistinguishable in primitive societies, so purely practical injunctions, applicable only to a particular tribe, well, or oasis, sometimes become entangled in universal, biblical edicts.
Because sex tends to create children, because children are important items of property among Bedouins, and because Bedouin tribes have no cultural institutions to deal with out-of-wedlock births, strict regulations arose to prevent any chance of out of wedlock children. These, inevitably, became entangled in religion, and have been passed down to cultures where the original, practical reasons for the rules no longer apply.
Some "sins" are nothing more than historical artifacts.
Sin is that which creates social disruption or something a culture has no institutions to deal with.
Religion, propriety and law are indistinguishable in primitive societies, so purely practical injunctions, applicable only to a particular tribe, well, or oasis, sometimes become entangled in universal, biblical edicts.
Because sex tends to create children, because children are important items of property among Bedouins, and because Bedouin tribes have no cultural institutions to deal with out-of-wedlock births, strict regulations arose to prevent any chance of out of wedlock children. These, inevitably, became entangled in religion, and have been passed down to cultures where the original, practical reasons for the rules no longer apply.
Some "sins" are nothing more than historical artifacts.