I don't think god would necessarily have a personality. I think that god would be more of an entity, than a person. An entity has no qualities except for the ones we define for it (anthropomorphizing), whereas a person has a self-definition which creates preferences for one thing over another. If god resembled a person, would he be limited to his frame of reference? Or, by seeing all -- does he transcend that frame of reference, and just reference what is, without will of his own (will implies preference, which implies personality)