The Trinity in History is the first volume in a new series by Robert M. Doran that uses the thought of Bernard Lonergan to develop a unified field structure for systematic work in theology. Building on his successful and thought-provoking Theology and the Dialectics of History and What Is Systematic Theology?, Doran works out a starting point for a contemporary theology of history and proposes a new application of the ‘psychological analogy’ for understanding the Christian doctrine of the Trinity. Advancing the work of Lonergan, Augustine, and Thomas Aquinas, The Trinity in History also enters into conversation with contemporary philosophical emphases, especially with the mimetic theory of noted anthropological philosopher René Girard. Doran suggests several refinements of Lonergan’s notion of functional specialization – developing a perspective for including the data of various religious traditions in theological construction, and establishing this theory’s relevance for contemporary interreligious dialogue.

The second volume of Robert M. Doran’s magisterial The Trinity in History continues his exploration of the Trinitarian theology of Bernard Lonergan, focusing now on the notions of relations and persons and connecting the systematic proposals with the so-called "Third Quest for the Historical Jesus." Doran not only interprets Lonergan’s major work in Trinitarian theology and Christology but also suggests at least a twofold advance: a new version of the psychological analogy for understanding Trinitarian doctrine and a new starting point for the whole of systematic theology. He links these theological concerns with René Girard’s mimetic theory, proposes a theory of history based in Lonergan’s scale of values, and creates a link between exegetical and historical scholarship and systematic theology.

The following dissertation concerning the Trinity, as the reader ought to be informed, has been written in order to guard against the sophistries of those who disdain to begin with faith, and are deceived by a crude and perverse love of reason. Now one class of such men endeavor to transfer to things incorporeal and spiritual the ideas they have formed, whether through experience of the bodily senses, or by natural human wit and diligent quickness, or by the aid of art, from things corporeal; so as to seek to measure and conceive of the former by the latter. Aeterna Press

Lesslie Newbigin was arguably the greatest missionary thinker of the twentieth century. After a successful missionary career in south India, Newbigin pioneered missionary engagement with the secular West and resurgent Islam. He also led the way in arguing that the Church’s mission can only be understood in light of the doctrine of the Trinity. Over fifty years ago, Newbigin called for the further development of missionary thinking grounded in the Triune being of God. This work is in response to that call. Adam Dodds provides the first in-depth study of Newbigin’s trinitarian theology of mission. Dodds constructs a systematic account of the central features of the mission of the Triune God: the Triune being of God, the mission of the Son, the mission of the Holy Spirit, and the mission of the church. This book contributes to our understanding of the work of Lesslie Newbigin, offers a systematic theological account of the mission of the Triune God, and contributes to the retrieval of Christian mission from the theological margins back to a place of central importance to Christian theology.

Classical Trinitarianism holds that every action of Trinity in the world is inseparable. That is, the divine persons are equally active in every operation. But then, in what way did the Father create the world through Christ? How can only the Son be incarnate, die, and be resurrected? Why does Christ have to ascend before the Spirit may come? These and many other questions pose serious objections to the doctrine of inseparable operations. In the first book-length treatment of this doctrine, Adonis Vidu takes up these questions and offers a conceptual and dogmatic analysis of this essential axiom, engaging with recent and historical objections. Taking aim at a common “soft” interpretation of the inseparability rule, according to which the divine persons merely cooperate and work in concert with one another, Vidu argues for the retrieval of “hard inseparability,” which emphasizes the unity of divine action, primarily drawing from the patristic and medieval traditions. Having probed the biblical foundations of the rule and recounted the story of its emergence in nascent Trinitarianism and its neglect in modern theology, Vidu builds a constructive case for its retrieval. The rule is then tested precisely on the battlegrounds that were thought to have witnessed its defeat: the doctrines of creation, incarnation, atonement, ascension, and the indwelling of the Spirit. What emerges is a constructive account of theology in which the recovery of this dogmatic rule shines fresh light on ancient doctrines.

The second volume of Robert M. Doran's magisterial The Trinity in History continues his exploration of the Trinitarian theology of Bernard Lonergan, focusing now on the notions of relations and persons and connecting the systematic proposals with the so-called "Third Quest for the Historical Jesus." Doran not only interprets Lonergan's major work in Trinitarian theology and Christology but also suggests at least a twofold advance: a new version of the psychological analogy for understanding Trinitarian doctrine and a new starting point for the whole of systematic theology. He links these theological concerns with Ren? Girard's mimetic theory, proposes a theory of history based in Lonergan's scale of values, and creates a link between exegetical and historical scholarship and systematic theology.