“Today most Western Christians are practical modalists. The usual way of referring to God is “God” or, particularly at the popular level, “the Lord.” It is worth contrasting this with Gregory Nazianzen, the great Cappadocian of the fourth century, who spoke of “my Trinity,” saying, “When I say ‘God,’ I mean Father, Son, and Holy Spirit.” This practical modalism goes in tandem with a general lack of understanding of the historic doctrine of the Trinity” (Robert Letham, The Holy Trinity, 5-6).