The Gospel of John has always been perceived as a more mystical gospel than the Synoptics. April DeConick explores in this book the mysticism of John, arguing that it is the result of an actual theological debate that engaged Christians in Syria, particularly those Christians responsible for writing the Gospel of John and those authoring the Gospel of Thomas. The subject of the debate was soteriology. Challenging the Christians who revered the Gospel of Thomas and taught salvation through ascent and vision mysticism, the Johannine Gospel argues for a mysticism based on the faith and sacramental experience. DeConick examines evidence from the Preachings of John, the Gospel of the Savior, the Apocryphon of James, the Ascension of Isaiah, and the Dialogue of the Savior to show that this soteriological controversy did not end with the composition of the Gospel of John but continued well into the second century.