Book excerpt: The director of the Navarre Bible project at the University of Navarre in Spain brings together his thoughts on one of the most intriguing Gospel writers, St. John. St. John has been called “the theologian” because of the theological depth of his writing. He is often symbolically represented as an eagle because his writings soar to the heights of the divinity just as the eagle soars upward to the sun. If the Gospels are “the heart of all of Scripture,” and therefore the object of special veneration and study, then the Gospel of St. John deserves special attention as the summit of the four.