Moral value not to murder may derive from the desire not to be murdered

Moral value not to murder may derive from the desire not to be murdered nor killed

Morality is both subjective and objective

Morality is both relative and absolute.  Some people say morality is either relative or absolute and can not be both but they are simply wrong

Even though morality is relative to the individual it is still very much objective and absolute.  Relativity does not contradict absoluteness or objectivety.  The elevation of the top of a building above sea level is an absolute and objectively measurable distance but it is still relative to sea level because you could also measure it's elevation relative to another location such as the height above the buildings parking lot for instance

If you do not want to be murdered you would desire to live in a society where other people have a moral value of not wanting people to be murdered to the point where they are willing to either imprison, exile/banish or execute murderers or attempted murderers.

But living in such a society would result in arrest, banishment or execution for you if you commit murder or attempt to commit murder

Even if you do not have a moral prohibition of murdering other people innately in your moral code, you would choose to have a moral prohibition against murdering other people in your moral code if you do not want to be killed, murdered or imprisoned out of a desire to be in a society where murderers are prosecuted combined with a desire not to be imprisoned, executed or banished out of such a society (as banishment would be certain death when the only remaining alternative societies to leave to have no prohibition on murder)

So even though not everyone might have the same moral code not to murder people most people will adopt such a moral code not to murder people if they do not want to be murdered or killed themselves and they think things through sufficiently

There are some people who do not care if they are murdered or killed and do not have any moral prohibition against murdering people in their mind.  Such people are rare but most certainly exist.  Such examples would certainly include mass murderers or serial murderers that requested the death penalty for themselves.

If everybody practiced the same universal moral code there would be no suicides so clearly morality is relative to the individual and not all people universally share practice of the same moral code 

Although practice of the moral code not to murder is not present in 100% of the society it can be widespread in a community as people who do not want to be murdered would choose to hang around people who morally object to  murdering other people.  Someone not sharing a personal moral code not to murder people would not get off the hook in such a society because they live by a different moral standard instead such a person would be imprisoned or executed or at least banished and exiled (with threat of death or imprisonment upon returning) upon committing or attempting to commit a murder in such a society precisely because other people in the society do not want to be murdered by them.

Copyright Carl Janssen 2021