Note: This ONLY applies to the super-transcendent deity of the kind espoused by some monotheists high on Platonism and Aristotelian metaphysics.
A transcendent god is often described by believers as being "outside of" time and space. Because god is outside the flow of time and outside of location in space, he is able to be a non-contingent being, that is, a being whose existence is dependent on nothing external at all.
However, a major problem exists with this logic. If god does not reside within time and space, then god cannot think or act at all. The idea of a process is only coherent within the context of some notion of time. Creation is a process, as is conscious thought. Without a sense of time along which change occurs, any sense of a "process" occurring is incoherent and self-refuting. Therefore, if god is a perfect being which exists outside of time and space, "he" cannot act in any way, nor can he have any consciousness.
If, instead, god exists INSIDE of some flow of time, he becomes able to perform actions and have thoughts. However, he also becomes a contingent being, and thus both his transcendence and the "argument from contingency" utterly fail, not that the argument from contingency works even for a do-nothing deity.
In the quest to make god increasingly "perfect" and "transcendent," some theists have defined him so abstractly that he can't actually function as anything at all.
