The anonymous author of the Fourth Gospel also composed the Johannine Epistles. According to church tradition, the author of the Fourth Gospel is identified as John, one of the twelve apostles whom Jesus appointed. The Fourth Gospel itself mentions Jesus’ beloved disciple who testifies to and explains the deeds of Jesus (John 21:24). Church tradition identifies John, the disciple and apostle of Jesus, as the beloved disciple and regards him as the author of the gospel that now bears John’s name. Without in-depth study of who the beloved disciple is, we may yet ask whether the author of the Fourth Gospel sought to be identified as the beloved disciple, who is always referred to in the third person, or whether the beloved disciple was merely the source of the ideas and perspective articulated by the author of the Fourth Gospel. Did the anonymous author make reference to the beloved disciple to indicate the source of his authority, making the Fourth Gospel some kind of anonymous pseudepigrapha? Or is the reference to the beloved disciple an allusion to some other kind of source that was the basis of the Fourth Gospel?
-  Already among the early church fathers there were those who believed that the author of the Fourth Gospel wrote only the First Epistle of John. See Raymond E. Brown, The Epistles of John (Anchor Bible 30; Garden City, N.Y.: Doubleday, 1982), 9-13–JNT. ↩
-  Various scholars have questioned the authenticity of the final chapter of the Fourth Gospel, which summarizes the entire work, and this problem has not yet received a satisfying solution. ↩