Kaja The thing that was created in the medieval Europe would be called an western morality or something like that. It comes from christian faith, but is mainly about creating the right interpretation that matches the requirements of politics and economics of the time. The thing that contrasts this to other abrahamic faiths is that in modern christianity/western culture the common values are presented as mostly being orthogonal to the faith (which is certainly a good thing, but it still makes you think about how these values were determined).
In both judaism and islam there are quite obvious religious values that were originally motivated by public policy reasons and have nothing to do with faith at all that are still orthodoxly observed by large groups of the relevant believers. The obvious thing are various dietary restrictions that have to do with not eating stuff that is hard to store such that it does not go stale.
And by the way various religious beliefs about chastity before marriage and chastity of preachers and chastity of who knows who are also product of public policy of the pre-modern era. The state essentially needed married couples producing and caring for children that would become another (preferentially larger) generation of unqualified indentured labor.
The modern society needs significantly different demographic structure to be sustainable and solves completely different set of day-to-day problems than meat going stale.
