Heavens Best Is God Not A Perfect Being, Just As Incorruptible As The Heavens Described By Aristotle?

Is God not a perfect being, just as incorruptible as the heavens described by Aristotle? - heavens best

On page 130, Grant described the rejection of St. Ambrose of "incorruptible heavenly ether of Aristotle, because it would involve the incorruptibility of heaven. But the world is corrupted ..." I think the model of Aristotle, the far field can be very simple to show how God Himself, as the sky in which they live. God is not perfect, incorruptible, like the sky described by Aristotle? Ambrosio, or suggesting that there is a difference between the earth and what is also defined. However, it still seems the conception of Aristotle on the UN to authorize moved mover "The cause of the operation.