Sir,
Firstly, I don't think "perfection" can always be defined by how efficient something is. Perfection can be an inherent characteristic outside of behavior. A perfect diamond is one that is perfectly white, has zero inclusions, and is cut to exacting proportions. A perfect diamond doesn't do anything but sit there and sparkle.
I would say that God is perfect outside of what actions He performs. His morality is perfect because it comes from His perfect nature.
Morality is what God does that's in accordance with morality? You have to either define it as caused by something or not caused by something.
God is the cause of His own morality. I guess you could call that circular - but you can't separate God from His morality like we could be separated from a moral code.
If morality were a chain hanging from the sky, where each code depended on the link above it - God would be the upper most link in the chain. He doesn't depend on anything to define Himself - He holds up and defines the chain.
I'll try another analogy - though none could do God justice. Suppose I was an artist (which I am) and I was greater than any artist who ever lived. Suppose I possessed every single artistic ability one could possess to perfection. All other artists would be judged by my standard. Similarly, God is the epitome of morality and all others are judged by His standard.
Obviously (I suppose, I've heard some pretty wack comments lol) you agree that murder is wrong, and so I do. It's wrong because if we started murdering then our society would crash, we can't survive if murder is condoned.
Very true, but why is murder wrong? Is it because our society agrees it's wrong? Seems like some societies in history didn't think it was wrong - so did that make it okay? Is it wrong because of some evolutionary adaptation? Seems like that would be entirely arbitrary - based on the way certain chemicals just so happened to coalesce. They might have just as well coalesced in anther way and we could have ended up in a society where murder is good.
Just curious, is there a moral action that I as an Atheist can't perform? Is there an immoral action that I ask an Atheist couldn't perform but a Theist could?
I can only answer this from a Christian Theistic position. Certainly, an Atheist can do any moral action just as well as a Christian could. What we do, however, isn't what is supposed to separate a Christian from a non-Christian. In the Gospels, Jesus upped the requirements of his followers. To Jesus, hating somebody was at the same level as murder. Jesus taught that what was at the heart of somebody (their thoughts and motives) was more important than what came out. Anybody can do nice looking things, but it's the inner motives that determine whether something is truly good or not. Overall, the Christian religion isn't about doing moral actions - it's about becoming somebody by God's grace that we could not become in our own striving.
On the other side of things, I think there are immoral actions (or sins) that a Christian could perform that an Atheist couldn't. A Christian (being that he is a new person by God's power) has more responsibilities than an Atheist does. Jesus makes it clear that the more a person has, and the more a person understands - the more is expected of him. The Bible gives clear commands to Christians that it does not give to non-Christians.