The twentieth chapter of John’s Gospel is full of climactic moments. Not only does it record the resurrection of Jesus and his interaction with Mary in the garden, but it also tells the story of Jesus’s appearance to his disciples in the upper room (On the Johannine Pentecost) and the climactic confession of Thomas a week later. The chapter ends with a clear purpose statement when John writes, “Jesus performed many other signs in the presence of his disciples that are not written in this book. But these are written so that you may believe that Jesus is the Messiah, the Son of God, and that by believing you may have life in his name.” (20.30-31) To many, these verses sound like an appropriate conclusion to John’s Gospel; for this reason, many scholars (and some readers) treat John 21 as a kind of appendix or addendum or afterthought. Although there is no manuscript evidence to support this claim, it is often argued that if chapter 20 brings the Gospel to its climactic conclusion, then why would John write chapter 21? It seems unnecessary. From a narrative perspective, John 21 is not an awkward appendix but the necessary completion of the Gospel’s story. It resolves tensions left intentionally open in chapter 20 and brings the Gospel’s themes — discipleship, love, witness, and mission — to their proper conclusion.

As I noted above, John 20 is the clear climax of John’s Gospel. Jesus is resurrected, the disciples are commissioned, and Thomas confesses Jesus as “My Lord and my God.” (20.28) This confession serves as a kind of bookend in the book that points the reader back to John’s opening where he affirms that Jesus is the Word that was with God and was God and was made flesh and dwelt among us. (1.1, 14) Following these climactic moments, it only makes sense that John’s purpose statement in verses 30-31 would bring the Gospel to its logical conclusion. This chapter proves that Jesus is the Christ of God, and that faith in Him as the resurrected one results in eternal life. The end. Or so one would think. Not only is there no manuscript evidence that John’s Gospel should end in chapter 20 (as there is with Mark’s ending, on which see here), but if John were to end his gospel with chapter 20, then there would be many narrative threads that would remain unresolved. What becomes of Peter after his denial? What becomes of the beloved disciple? What becomes of the disciples’ mission? Yes, chapter 20 concludes the narrative arc of Jesus’s identity, but chapter 21 goes on to explain what that revelation now means for the followers of Jesus.

John 21 returns the reader to the Sea of Tiberias, aka the Sea of Galilee. Narratively, this is a return to where it all began. Not only did Jesus begin his public ministry in Galilee, but he also called the first four disciples after a night of fishing on the Sea of Galilee. The scene intentionally echoes the earlier calling narrative familiar from Luke 5. After a night of fruitless labor, Jesus shows up and tells them to cast their nets on the other side of the boat. They haul in a catch that is nearly too large, and Jesus commissions them to discipleship and mission. Many interpret this scene as a regression for the disciples, a return to the life and vocation before Christ. However, in light of this parallel, this scene should be understood not as a regression, but as narrative symmetry. John intentionally returns his readers to the beginning to show that the resurrection does not erase vocation — it redefines it. Vocation that is engaged apart from radical dependence on the risen Christ is utterly futile, but when vocation is entered into from a position of dependence and obedience to the risen Christ, then it is abundantly fruitful. When we submit our vocation to the mission of Jesus, then we will reap abundant fruit and reward. Even so, the real center of John 21 is not fish, it is Peter.

Of course, all four Gospels record Peter’s three denials of Jesus on the night of Jesus’s arrest, but John is the only one who records Peter’s restoration. (Luke hints at the idea when Jesus tells him that after returning, he will encourage his brothers.) John deliberately connects the scene in John 21 back to the denial scene by noting that Jesus prepared a “charcoal fire” and the threefold repetition of the question “Peter, do you love me?” matching Peter’s three denials. Some tend to make a big deal out of the various words that are used for love in Peter’s answers, but this is overplayed. Not only were the words basically synonymous in the first century, but the idea that Peter’s love did not rise to some divine standard is wholly alien to the logic of the text. This is a threefold public restoration that corresponds to Peter’s threefold public failure. Moreover, it reveals the pastoral tenderness of Jesus. Jesus does not scold Peter; he does not call him out over his failures. He doesn’t berate or condemn him. He graciously restores Peter to ecclesial service. “Feed my lambs. Shepherd my sheep. Feed my sheep.” This commission is not merely personal therapy for Peter; it is an ecclesial necessity. John cannot end his Gospel with Peter in unresolved failure. The shepherd of the disciple group must be restored if the flock is to endure. But Peter is not the only disciple in view here either.

After his restoration, Peter noticed the disciple whom Jesus loved and he asks Jesus, “Lord, what about him?”, and Jesus responds, “What is that to you? As for you, follow me.” (21.20-22) Jesus’s point is that he has different callings for each of his followers, and that following Christ is more important than comparing callings. Peter’s calling was to shepherding and martyrdom; the beloved disciple’s calling was to abiding ministry and public/written testimony. As he writes in 21.24, “This is the disciple who testifies to these things and who wrote them down. We know that his testimony is true.” Not only is this important for establishing the credibility and reliability of John’s Gospel, but it is also a fundamental component of John’s understanding of what it means to be a disciple of Jesus. To put it another way, John 21 grounds the authority of the Gospel in eyewitness testimony while clarifying that discipleship does not look identical for all. We all serve the risen Christ, but we all serve him in different and varied ways. These verses are not just random narrative details added on to the end of the story; they are essential for completing John’s theology of discipleship.

In other words, for John, discipleship is a life that is characterized by following Jesus, loving Jesus, abiding in Jesus, and witnessing to the truth about Jesus. When we confess Christ (chapter 20), he commissions us to a life of embodied mission (chapter 21). If we truly believe that Jesus is the risen Christ (and he is), then we will follow him in whatever calling he has placed on our lives. Put differently, discipleship is the vocation of following Jesus. The risen Christ is not merely to be believed in — he is to be followed. If we say we love Christ, we will commit ourselves to and give ourselves for the care of his people. Moreover, John hints at the fact that discipleship can involve suffering. In 21.18, Jesus tells Peter, “when you grow old, you will stretch out your hands and someone else will tie you and carry you where you don’t want to go.”, and John explains that “He said this to indicate by what kind of death Peter would glorify God.” (21.19) This is part of the vocation of discipleship, too. We must be willing to follow Jesus wherever he leads; this is the kind of discipleship that Jesus is calling us all too.

However, returning to my thesis, without John 21, Peter’s denial remains unresolved, the beloved disciple’s authority is unexplained, and the future of the community of Jesus followers is unclear. In terms of John’s narrative, John ends his gospel not with spectacle but with discipleship as vocation. Chapter 20 concludes the revelation of Jesus’s identity, and chapter 21 concludes the formation of Jesus’s community. Or to put it another way, John 20 answers the question “Who is Jesus?”, and John 21 answers the question “What now?” Without this pastoral and ecclesial resolution, John’s Gospel would be incomplete. John does not end his Gospel in private mystical belief. He ends it with shepherding, witness, martyrdom, and mission. And he leaves the end of the story open when he writes, “And there are also many other things that Jesus did, which, if every one of them were written down, I suppose not even the world itself could contain the books that would be written.” In other words, the story is ongoing, and all the things that the risen Jesus will do have not yet been completed even two thousand years later. John 21 is not a loose epilogue. It brings the Gospel to its proper end — not merely with a confession of Christ, but with the commissioning of those who will testify to him. The risen Lord restores the fallen, distinguishes callings, anchors testimony, and sends his followers into a future shaped by love and sacrifice. That is not an afterthought. That is narrative completion. And it poses the question to the reader, “Will you follow Jesus?”