Perry,
You see, this is where you are wrong and confound your errors with supposition.
Atheists say that there is no such thing as morality. Yet, they tell themselves (as do others for different reasons) that its wrong to lie, steal, commit adultery etc. They no doubt do this in part because of the knowledge that this is very damaging to relationships. I have no problem with a pragmatic approach to morality. But, who pays the piper? Why do we as humans violate the morality we've decided to adopt? Why do we just accept cliches like "that's just human nature". We're not talking about some standard in a holy book. We're talking about standards common to adherents of most world views. So, we'll all just judge others for the same crimes that we are guilty of? This is not acceptable to me. Does nobody pay the piper?
Atheists accept that there is such a thing as morality, but that this morality was not a concept implanted by God, it was and is a learned concept. Our environment and experience define our morality. It is a socially conditioned concept. That is why I was and am trying to get you to research the experiments of Stanley Milgram, as these begin to signpost the road of an evolutionary concept to morality.
We may pass onto our forebears our own inclinations where morality are concerned. We may merely emulate the morality of others. But we are all influenced by our peers and environment both as individuals and as a society. In the Western World Christianity has moulded what we now experience in this C21 call morality. As a Christian likely you would have been repulsed by the behavior of Christians in the Dark Ages and blame Satan for what was happened to the church. What was really happening was the social evolution of Christian Morality, nothing more or less.
In other parts of the world other religions and philosophies also develop their own moral imperatives. Morality is not the preserve of Christians and is not an inbuilt thing. The apostle Paul was incorrect in assuming this.
This is a complicated subject to discuss with someone, like yourself, who by virtue of his belief is forced to start the process of critical examination from a conclusion. Mircea Eliade in is book 'From PrimitivesTo Zen' researches exactly the theme of social morality and shows how a sense of morality was adopted and honed by the primitives as their world changed. I really recommend that you do some reading on the subject before you define your own thoughts.
Cheers - HS
