Lewis Ayres offers a new account of the most important century in the development of Christian belief after Christ. He shows how the doctrine of the Trinity was developed, and in particular argues that a conception of God's mysteriousness and spiritual progress towards understanding is central to that doctrine. He also proposes that modern theologies of the Trinity fail to appreciate the depth and power of Nicene trinitarianism.

Augustine of Hippo (354-430) strongly influenced western theology, but he has often been accused of over-emphasizing the unity of God to the detriment of the Trinity. In Augustine and the Trinity, Lewis Ayres offers a new treatment of this important figure, demonstrating how Augustine's writings offer one of the most sophisticated early theologies of the Trinity developed after the Council of Nicaea (325). Building on recent research, Ayres argues that Augustine was influenced by a wide variety of earlier Latin Christian traditions which stressed the irreducibility of Father, Son and Spirit....