Another route to the identity of God with his existence is via the divine necessity. Although it is true to say that a contingent being is one that exists in some, but not all, metaphysically possible worlds, that is not what makes a contingent being contingent. What makes a contingent being contingent is the real distinction in it between essence and existence. What makes an absolutely necessary being necessary, then, is the lack of such a distinction. God, who has his necessity from himself and not from another, is therefore identical to his existence. One can say, if one likes, that God exi...