While searching for his notes, Fr. Jacob quizzes Fr. John on Augustine's Trinitarian Theology, and then he leads us through the writings of St. John the Apostle, his Letters, his Gospel, and The Book of Revelation with an eye toward the Trinitarian Theology in John. As they ponder the Trinity, Fr. Jacob and Fr. John close the episode by reflecting on the High Priestly Prayer of Jesus found in the Gospel of John, chapter 17.