The document provides background on John the Apostle and author of the Epistles of John. It summarizes that John was one of Jesus's closest apostles, authored the Gospel of John and Book of Revelation, and late in life authored 3 letters (Epistles of John) while exiled in Ephesus. The letters focus on themes of walking in the light of God's love versus darkness of hate, describe the nature of God as love, and dealing with challenges to the early church from those like Diotrephes who sought to undermine the apostles' authority.