I started reading this book as part of a Bible study class on the Gospel of St. John. Events prevented me from participating in the class, but the book was an edifying read. It begins with an introduction. Throughout the book the top of the page contains the test of the Gospel or Epistle, with the commentary, identified by chapter and verse, on the bottom. The commentary certainly presented insights of which I had not previously thought. After reading this I have a greater understanding of the Scripture when I read any of the Johannine writings.