Ford meticulously reconstructs and evaluates Whitehead's own versions of theism, and he critically appraises the most influential subsequent modifications of these unrecognized variants by other process thinkers. He recovers the original trajectory of Whitehead's continuous revision of his conception of God, and forges an appropriate solution to this central aporia. He concludes that -- consistent with Whitehead's overarching metaphysical principles, there is another kind of causal influence that does not require objectification, and is the opposite of past determinateness. The future, conceived as active, offers an account of subjectivity which is both universal and transcendent. God, according to Ford's revisions, must be understood as this particular but indefinite creativity or universal activity of the future, bestowing subjectivity on each present occasion of experience without ever becoming determinate.