It seems pretty clear to me that what you are attacking is the concept of objective, Scriptural, morality.
I, too, often get annoyed by religionists(usually Christians or Muslims) insisting that their moral opinions are those of God and don't need any further justifications or adjustments. Then they will point to a Scriptural verse that isn't really clear and insist that their interpretation is the only possible interpretation.
The decalogue falls into that category. What the ancients would have considered murder doesn't always match what modern people consider murder.
And what people nearly always mean by murder is "killing which I disapprove of strongly". Which is quite subjective. Which abortions? Which executions? Which wars? Does marketing cigarettes to young people count? Loaning a car with poor safety equipment? Feeding your husband all the bacon he wants?
Murder is a very complicated concept.
But you are being quite a jerk in this thread.
Tom