One of the more important developments in the field of theology in the past two decades has been a gradual but genuine revival of interest in the doctrine of the Trinity. This fundamental Christian doctrine had been neglected by theologians, who saw it as isolated from practical Christian faith and life. Recently, however, feminist and liberationist, as well as more traditional Catholic and Protestant theologians, have come to see the Trinity not as an abstract doctrine, but instead as dealing with the living and dynamic being and acts of God, and closely related to Jesus Christ and the resurrection as the mystery of salvation. This insight has in many ways become one of the central themes of contemporary theology. In this study, Irish Presbyterian theologian John Thompson provides a survey of the wide variety of modern thought on this important theme, examining the work of figures like Karl Barth, Karl Rahner, Wolfhart Pannenberg, and Jurgen Moltmann, and their views on such issues as the relationship of the trinitarian doctrine to Scripture, the Church, philosophy, politics, and society.