Drawing upon a decade of research and a background in Literature, Linguistics, Biblical Studies, Reformed Theology and the History of Philosophy, Dougherty seeks to uncover the biblical doctrine of the Holy Trinity. Dougherty considers the doctrine from a biblical perspective, from a historic perspective, and from a philosophical perspective, drawing upon such thinkers as Augustine, Aquinas, Calvin, Owen, Edwards, and Cornelius Van Til. While Dougherty challenges many contemporary and historic assumptions about the famous Christian doctrine, contrasting his position on many points with those of contemporary authors such as Robert Letham and John S. Feinberg, his conclusions are in line with the spirit of traditional orthodoxy: He writes, "The Father is wholly God, the Son is wholly God, the Spirit is wholly God. There is no God apart from or in addition to Father, Son and Holy Spirit."