The doctrine of the Trinity has the power to resonate with us deeply. Its focus on unity and community speaks with great prophetic challenge to both the world and the church. In God Unknown, Ian Mobsby shows how the Trinity's divine unity, open-endedness and refusal to be bound by fixed meanings can illuminate our mission, worship and spirituality today. Weaving together Trinitarian theology, cultural exegesis and new monastic spirituality, he issues a timely call to the church to become a more authentic, effective expression of God's love in an individualist, consumerist culture.