Ninety percent of the account in the Gospel of John is unique among the Gospels. The account of the disciple whom Jesus loved presents a developed and complex theology of Christ and Salvation that has kept commentators as busy for centuries. The 29-volume Classic Commentaries and Studies on the Gospel of John Upgrade features even more of the best nineteenth- and twentieth-century commentaries and studies on the fourth Gospel. Among the authors of these classic volumes are Scottish Reformed theologian John Brown, Anglican priest M. F. Sadler, and American Congregationalist minister Lyman Abbott. Filled with more than 9,500 pages of commentary, criticism, exposition, and devotional literature, these volumes are valuable for their insights into both Johannine theology and the history of studies on John.