Introduction Prayer, Particularity, and the Subject of Divine Personhood Who Are Brummer and Barth Invoking When They Pray? John C. McDowell THE TITLE "TRINITARIAN THEOLOGY AFTER BARTH" IS A DECEPTIVELY simple one. With the reference to trinitarian theology it appears to have learned from Barth that the doctrine of the Trinity is no mere dogmatic addendum, merely another thing confessed. Instead, it is, in some way or another, regulative of what counts as Christian. Of course, all Christian doctrines overlap and interpenetrate one another, but as doctrines they have their raison d'etre in the confession of God. However, a claim by Daniel Migliore that "Rightly understood, the doctrine of the Trinity is not an arcane, speculative doctrine" implies that something terribly wrong has occurred in theological reflection.' Problematic is not only the modern feeling that the doctrine of the Trinity is "esoteric and speculative;' but also the separation between the doctrine and Christian practice. Consequently, Migliore feels compelled to counter by arguing that "the route that we take and the conclusions that we reach in the doctrine of God will profoundly influence everything else that we say about Christian faith and life:' 2 1. Migliore, Faith Seeking Understanding, 59. 2. Ibid.,56 . 255