Christian Influence

Thus there remains only the idea of God. I must consider whether there is anything in this idea that cold not have originated from me I understand by the name "God" a certain substance that is infinite, independent, supremely intelligent and supremely powerful, and that created me along with everything else that exists--if anything else exists. Indeed all these are such that, the more carefully I focus my attention on them, the less possible it seems they could have arisen from myself alone. This from what has been said, I must conclude that God necessarily exists...76:45

Given that Decartes discusses at length his conception of the true power and capabilities of God, would we go about saying that he believes in a Christian God? He states that God is infinite and that "nothing can be added to his perfection." Does Descartes adopt a Christian attitude toward God, or does he create his own understanding? Under what notion does Descartes think that God is an actual existing thing, and how could we break down this argument? It seems that he might jump to quickly, or rather, that he simply assumes that since he is a thinking thing, that God must be a thinking thing. How does he get to this point? And how does he back it up?