I'm afraid I don't, that was just me pontificating. Mostly gathered from observations on how different people with different senses of morality get wildly different readings from the same religious book, almost invariably a reading that is convenient for themselves.

I think most people agree that at least most religions are man-made (all, if you are an atheist, but I think that most theists would agree that religions other than their own are man-made). If a particular religion is man-made, then it is made within the context of some particular culture. While it is possible that the new religion introduced new and novel ideas, more often than not I think the religions that found acceptance in their host-culture did not rock the boat too much. Those religions therefore largely reflect the cultures that they were created in. If a religion advocates stoning gay people, then chances are the culture in which it was created was also pretty on board with stoning gay people.

I think that religions are adapted or re-interpreted when they are introduced to other cultures that already have different values. Lots of things that were taken literally by the host culture suddenly become metaphorical. Holidays that were previously cherished by the new culture are wedged into their new religion under flimsy pretenses. Etc.