Thanks for clarifying guys. So book sharing is only for Kindles on a common account. Got it.
I believe the shared Bibles in question are from OSNOVA and as such, do not have DRM.
My ebook management leaves something to be desired because I do not know which ones have DRM and which ones don't. I use caliber to manage the ebooks and with the available plug-ins, DRM has become transparent and not noticeable.
However, pdurrant has come up with
a program to check DRM. So I should be able to sort the wheat from the chaff once I get around to testing that out.
Edit: I see we crossed in cyberspace. I understand about plan B.