A god that's not timeless

God is supposed to be a perfect, all-knowing and omnipotent being who exists in all times at once.  Hell, he's supposed to have created even the concept of time. What's interesting is that he shows evidence of changing over time, which may suggest something other than timelessness. In the Old Testament, he was the god of wrath. In the New Testament, he's the god of mercy. His personality and the way he interacts with humanity certainly seems to evolve quite a bit.

According the bible, there were a few times in humanity's history where god decided that things weren't quite working out the way they were supposed to, so he did something drastic to fix them. With the Noah's Ark story: he was displeased with the entire population of the human race, so he essentially picked up the Etch-A-Sketch and gave it a good shake. Hurray for the Great Flood. He wiped out humanity and started over.

Much later, the human race is being a collective bitch again and something needs to be done. Maybe the drowning of millions of his precious creation broke his heart the last time he had to do it, so he decided to try a more peaceful (and less mass-murderous) solution. So he became man in the form of Jesus and provided a new way of getting into heaven, saving the whole lot of us miserable bastards. These events and god's reaction to them seem to blatantly indicate that he was learning along the way, and changing the way he did things accordingly. He was presented with a problem, he reacted with a solution. He was later presented with a similar problem, and he reacted differently than before, with a new and better solution.

It's always said that god will come again and "judge the living and dead", or essentially judge every human who's ever lived. To judge someone is to assess them and decide if they've done things properly. If he already knew who would successfully pass this judgement before he even made everyone, then the "Day of Judgement" would really be the "Day of Sorting", when he'd just create two lines for everyone on his pre-determined list – heaven or hell. But the fact that he still has yet to judge each one of us – to evaluate by some criteria and decide a consequence – means simply that he hasn't decided yet. Which means that time in his life hasn't happened yet either.

Everything god has done, currently does, or will do, seems to follow the pattern of "action, reaction". Things happen, and then he reacts in some way. It also seems to indicate that god learns from his experiences and does things differently later. This seems to point to a being that could be going along a timeline similar to us.

If god was perfect and existed throughout all of time, then there would be no difference in him between the two testaments, Jesus would have always existed as a way of getting into heaven, and he could have foreseen the collective bunch of assholes the human race was becoming and possibly avoided the Great Flood.

Now it may not be such a big deal for god to be on a timeline like us. If he's got power that's still infinite in comparison, what difference does it make? It could cause us to redefine our definition of "perfect". Or it could open a can of worms about whether god has to be perfect and omnipotent in every way to do what he does. And if it can be said that god isn't perfect, then the entire religion risks unraveling into oblivion.

It could also be that we're the ones who change, so through our perspective it appears that god is changing with us. Much like reading the same book once every 10 years. It would be an entirely different experience and you would learn new things every time you read it. But it's you who has changed. The book, as the teacher, has remained the same.