Well he's outlined it all out in his book. I don't have the time nor the space to explain all the exceptions, details, and nuances to you. The axioms we operate by are simple. God exists, God created man, and the Bible is the word or law of God. Everything else follows from those. I take my axioms on complete faith in exactly the same fashion as you take your axioms dealing with the initiation of force on complete faith. What's to argue? Possibly you don't believe you take your axioms on faith?
It's kinda funny. I've read that book many times. I'm very much familiar with it. In fact, I used to teach from it.
And never, have I found a satisfactory answer to the question you're avoiding.
How does God define murder?
Why wasn't Joshua's slaying of innocent women and children by cutting their throats, murder?
Was it the fact that God commanded it?
How would we be able to tell today, if someone did something similar?
How do we separate those who really murder because God says so, from those who are just saying that?