God's Shining Forth offers a theological presentation of divine light in which the leading motif is the doctrine of the Trinity. More precisely, this study is organized around a double trinitarian theme: God is light in himself, and from himself God is radiant in relation to human creatures. This double affirmation is expounded by considering its extensions in the work of God's grace, in ecclesiology, and in the nature of theological intelligence. The chosen conversation partners in this study are some of the leading pro-Nicene trinitarian theologians of the fourth century, plus John Calvin,...