Keith Ward is Regius Professor of Divinity Emeritus at the University of Oxford, Professor of the Philosophy of Religion at Roehampton University, and a Fellow of the British Academy. He is a Canon of Christ Church, Oxford.

Part I. The Threefold Nature of the Divine Being: 1. Introduction: talking about the Trinity; 2. Why we may need to restate the ways in which we talk about the Trinity; 3. The doctrine of divine simplicity; 4. Cosmological and axiological explanation; 5. Divine potentiality and temporality; Part II. The Biblical Sources of Trinitarian Thought: 6. Three centres of consciousness?; 7. The synoptic Gospels; 8. John's Gospel; 9. The Trinity in the Epistles; 10. The idea of incarnation; Part III. The Trinity, Immanent and Economic: 11. Why three?; 12. Trinity and revelation; 13. Hegel and modern theology; 14. The immanent Trinity; 15. The identity of the immanent and the economic Trinity; 16. Hegel again; 17. What creation adds to the Trinity; 18. The epistemic priority of the economic Trinity; 19. The Trinity and naive realism; 20. The Trinity and the cosmos; 21. Revelation and the immanent Trinity; Part IV. The Social Trinity: 22. Persons and substances; 23. The idea of a personal and free creation; 24. The logical uniqueness of persons; 25. The divine nature and freedom; 26. Freedom in God and in creatures; 27. Persons as necessarily relational; 28. An ontology of the personal?; 29. Intra-Trinitarian love; 30. Infinite goods; 31. Divine love and necessity; 32. Love and alterity; 33. Trinity versus Monotheism; 34. The passion of Christ; 35. God and abandonment; Part V. The Cosmic Trinity: 36. The doctrine of perichoresis; 37. The convergence of social and unipersonal models of the Trinity; 38. Life-streams and persons; 39. Modalism and necessity; 40. The cosmic Trinity.