Dr. Giulio Maspero is a priest, theologian and physicist who in this work embarks on a study of the Trinity––the Christian triune God––and in a single narrative pieces together the classical metaphysics, revealed truths and Patristic apologetic theology that directed the development of Trinitarian dogma. Maspero views the importance of this project from several perspectives. It connects us both exegetically and in fellowship to Christianity’s Jewish roots and the living God of shared Scripture. It introduces the reader to a deeper understanding of the historical development of the Trinity, which is especially engaging given the formidable minds and arguments involved in this history, particularly on the part of the Cappadocian Fathers: Gregory of Nyssa, Gregory of Nanzianzus and Basil the Great. Maspero also notes that knowing the Trinity better will offer greater insight into papal descriptions of the human family as necessarily rooted in a Trinitarian foundation, a “communion of persons in the image of the union of the Father, the Son and the Holy Spirit.”