Evolution

There's a book out called; "The Evolution of God". I haven't read the book, but the concept is interesting. It proposes that although God has not changed, our perception of Him has.
Now the book is written by a non-believer, and he talks about "god" not God. But I think the same can be said for us.
Our concept of God has changed. But it has not be time that has changed our perception, we have not evolved. This is a notion that I am a tad uncomfortable with. It would imply that we today have a greater knowledge or understanding of the creator of the universe than did those who lived before us, given that evolution is a progressive force and things that have evolved to not devolve again.
Rather, it is our circumstances that change our view. God simply chooses to reveal himself as we need to see Him.
In the Old Testament we see God several times as the powerful kickin' butt God. This was exactly the God that the Isrealites in captivity in Egypt or in Babylon needed to see. Likewise this is probably the same God that black slaves on a plantation in Georgia in the early 1800's saw.
The victim of abuse sees the loving hand of Jesus comforting her and healing her body and her heart.
The hungry see the God that watches over the sparrow.
The stagnant Christian needs see the God that turns over tables.
So if I were to look honestly what God would I see?