Like I said before, Aineo, the concept of 'moral' and 'immoral' are things that are taught.
Leading a 'moral' or an 'immoral' life depends on what you have thought to be true. If you have been raised as a cannibal, it is not unusual to kill people and eat them. In this case, there is nothing 'immoral' about killing a person, from the cannibal's point of view.
The things that you mentioned as 'moral concepts' are purely based on biblical believes. It would be correct to exchange 'moral' with 'bibilal' from now one, right?