This new Pillar commentary seeks to clearly explain the meaning of John's letters to teachers, pastors, and general readers looking for a reliable resource for personal study. Colin Kruse provides an introduction to the important issues involved in interpreting the Johannine letters, gives verse-by-verse comments, and provides extensive discussion of John's major theological themes, including the real humanity of Christ, atonement, the role of the Spirit, Christian assurance, the meaning of koinonia, Christian love, and eternal life.