It is obvious that in Western societies, being founded on / dominated by Judeo-Christianity, the concepts of Judeo-Christianity will be "common" and seem woven into the very fabric of what it means to be upstanding and moral. But this is nothing more than circular reasoning!
The "holy scriptures" of the Fungo-Fango Tribe on the island of Bango-Bango all contain "common" (for Bango-Bango) concepts such as "Don't eat squid during a Full Moon," "Spit three times if you see a dolphin," "Kill your new-born babies if they have six toes," "Never forgive your enemies," etc.
All other religions (Judaism, Lutheranism, etc.) are sad and twisted imitations - or don't even reference this "self-evident and common" wisdom!
Regards,
But Christianity is NOT a set of rules like the Fu-Fa folks have.
This authoritative library of wisdom not only describes human nature to a "T," its invariability across cultures (including that of the Fungo-Fangos), and show how to deal with those human behaviors. It should be mentioned that the Judeo-Christian literature has as well a predictive element of global human history shown to have occurred as prophesied, recorded in non-inspired but reliable records in detail.
Of course, you probably know that the Fungo-Fangos are not a primitive society, but one decadent from a more highly developed state that at one time broke off from others and decided to invent their own rules and "morality"?
It would be instructive to learn why your logic here is not circular in itself, except as you provide a timeline of their history and how their non-Biblical life style came about. What is curious is that they still have some form of recording their ideas, and have some kind of invariable standards by which their records can be compared to be considered "holy."
How was this done apart from the Moving Force that yielded the common "Western" (?) way of dealing with human behaviors?