Apologies if it came across as a serious comment, Michael. I should perhaps have added 'LOL'.

I think there's an article of mine on Mustrad on the history and evolution of the 'Rocking the Cradle' songs, but as a genre 'cuckoldry ballads' are numerous and to try to relate them to the religious story to me sounds like cloud cuckoo land but if anyone can provide any sort of feasible link I'm all ears.