Christian theology affirms that the persons of the Son and the Holy Spirit are sent into the world to gather a scattered and rebellious humanity back to God. But how are we to understand these divine missions, given that the Son and the Spirit have already been present in the world from its foundation? Moreover, in what sense are they on a mission if they never leave the unity of the Trinity? In this volume, Vidu introduces us to the profound riches of this ancient and foundational doctrine. With ample illustration, he explains the technical concepts, the operative principles, and he clarifies the historical and contemporary debates. In the process, a constructive theology emerges where the category of divine missions frames topics such as the incarnation and life of Christ, his atoning death and ascension, the Pentecostal outpouring of the Spirit, the invisible indwelling of the Spirit, and finally the eschatological beatific vision.

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.

Christian theology affirms that the persons of the Son and the Holy Spirit are sent into the world to gather a scattered and rebellious humanity back to God. But how are we to understand these divine missions, given that the Son and the Spirit have already been present in the world from its foundation? Moreover, in what sense are they on a mission if they never leave the unity of the Trinity? In this volume, Vidu introduces us to the profound riches of this ancient and foundational doctrine. With ample illustration, he explains the technical concepts, the operative principles, and he clarifies the historical and contemporary debates. In the process, a constructive theology emerges where the category of divine missions frames topics such as the incarnation and life of Christ, his atoning death and ascension, the Pentecostal outpouring of the Spirit, the invisible indwelling of the Spirit, and finally the eschatological beatific vision.

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 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.

Should our proclamation of the gospel be in words or deeds or both? What do the Scriptures say? New Testament scholar and missionary Dean Flemming takes a look at this disputed question. Rooted in the Old Testament and covering the Gospels, Paul, Acts, Peter and Revelation, Flemming provides a biblically sound basis for holistic evangelism.

Written by a team of 21st-century scholar-practitioners, Discovering the Mission of God explores the mission of God as presented in the Bible, expressed throughout church history and in cutting-edge best practices being used around the world today.