This companion explores how the Christian doctrine of the Trinity has been understood and articulated in the last 2000 years. The Trinitarian theologies of key theologians are carefully examined, and the doctrine of the Trinity is brought into dialogue with different religions as well as with other Christian beliefs.

How do Christians reconcile their belief in one God with the concept of three divine 'persons'? This Companion provides an overview of how the Christian doctrine of the Trinity has been understood and articulated in the last two thousand years. The Trinitarian theologies of key theologians, from the New Testament to the twentieth century, are carefully examined and the doctrine of the Trinity is brought into dialogue with non-Christian religions as well as with other Christian beliefs. Authors from a range of denominational backgrounds explore the importance of Trinitarian thought, locating...