Jesuit theologian Karl Rahner wrote, “Christians are, in their practical life, almost mere ‘monotheists.’ We would never know they believed in the Trinity, because nothing about their lives reflects trinitarian engagement.”

While Christians are monotheists—that is we believe in only one God—we are not what Rahner called mere monotheists. We believe there is one God who exists eternally as a Trinity of Persons: Father, Son, and Holy Spirit. “God in three Persons, blessed Trinity,” as the hymnist put it.

On May 4, our podcast featured this week's guest, Dr. Jeremy Holmes, talking about his new book Cur Deus Verba: Why the WORD Became Words. The book is a theology of Scripture, but it begins with a chapter entitled “Why God Created: The Trinity.”