 The term “God” is used with a wide variety of different meanings.  These tend to fall, however, into two main groups. On the one hand, there are metaphysical interpretations of the term: God is a prime mover, or a first cause, or a necessary being that has its necessity of itself, or the ground of being, or a being whose essence is identical with its existence. Or God is not one being among other beings—even a supremely great being—but, instead, being itself. Or God is an ultimate reality to which no concepts truly apply.