A part of God has to effectively embrace and experience the whole consciousness and being of God before it stops arguing with other parts of God. As long as it perceives itself as separate from others, it will argue with them. That's why we all do it. We perceive ourselves as irrevocably separate from others.

"A house divided against itself cannot stand." (cannot be in harmony)

And that is what is symbolically termed "the fall of Man" in some religious literature. The fall was a fall into separated consciousness (which thinks it is alone). The first thing that arises when you think you are alone is deep fear...coupled with a sense of incompletion and vulnerability. Out of that arises a long list of desires...and attempts to fill the void. If any desires are fulfilled, further ones arise. If all desires that the separated mind can come up with are seemingly met (as can happen to a few who are very rich and somewhat lacking in imagination), the response may finally be despair and self-destruction. The sense of aloneness is acute in people, and it is the cause of every form of strife and negative reaction. It is the source of the human ego. It is exactly what stands in the way of God-realization, happiness, love, and peace. It is the way of the physical world. Only one person in 100,000 does not believe in it implicity for his or her entire life.

That's why Jesus (and Buddha and some others) said things like "my Kingdom is not of this world" or "I am in this world but I am not of this world", because this world is the very demonstration of the false belief in separation.

And I don't expect you to believe any of that... (heh!) Not if you're like the next 999,000 people out there.