 What could motivate such a strange and seemingly incoherent doctrine? One central consideration in its favor derives from the Anselmian definition of God as maximally perfect, as that than which no greater can be conceived. A God who was less than maximally perfect would not be an absolute reality and an appropriate object of worship. A God who was less than ultimate and absolute would be an idol. Now an absolute reality must be a se, from itself, and so not dependent on anything distinct from itself either for its nature or for its existence. If God had properties in the way creatures have them, however, he would be distinct from them and so dependent on them. This is the case whether one thinks of a property of x as a constituent of x, or as an entity external to x to which x is tied by the asymmetrical relation (or nonrelational tie) of instantiation. If the properties of x are constituents or ontological (proper) parts of x, then x will depend on them in the same way that any whole composed of parts depends on its parts. But if x is tied to its properties by the asymmetrical relation of instantiation, it is still the case that x will depend on them: if x is F in virtue of x’s instantiation of F-ness, then F-ness is a logically prior condition of x’s being F. In sum, the divine aseity would seem to require that God be rather than have his attributes.