The chapter
Simply Seven of them go fishing and catch nothing all night. A man on the beach tells them where to put the net and it comes up full. They eat breakfast with him by a charcoal fire. Then he asks Peter three times whether he loves him, and tells him three times to feed the sheep, and says something about how Peter will die. Peter asks what will happen to the other disciple, and is told to mind his own following.
Context The book has already ended once. Verses 30 and 31 of chapter 20 say what was written and why, in the voice of a conclusion, and then this chapter begins and ends with a second conclusion at verse 25. A reader who notices the double ending is reading accurately, and this file names it and stops there, because deciding how the chapter came to be here would need scholarship the corpus does not hold. What the chapter itself adds is a first person plural: verse 24 says WE know that his witness is true, which is the only place in the Gospel where a group speaks about the writer.
Verses 1-14
Simply Peter says he is going fishing and six others go with him. They catch nothing all night. At daybreak a man on the shore asks whether they have any fish, tells them to cast on the right side, and the net fills. The disciple Jesus loved recognises him first and Peter jumps into the water. On the beach there is a charcoal fire with fish and bread already on it. Nobody dares ask who he is. The net held a hundred and fifty-three large fish and did not tear.
Context The number at verse 11 is exact and unexplained, which is why it has attracted so much interpretation; the text gives it and says only that the net did not tear. The charcoal fire at verse 9 is the second one in this Gospel. The first was at 18:18, where Peter warmed himself and denied him, and the chapter is about to ask him three questions. The text places the two fires and the two sets of three without commenting, and the file does the same.
Verses 15-19
Simply After breakfast Jesus asks Simon three times whether he loves him. Peter says yes each time, and is told each time to feed or tend the flock. The third time upsets him, because it is the third time. Then Jesus tells him that when he is old someone else will dress him and take him where he does not want to go, and the writer explains that this was about the death Peter would die. Then he says: follow me.
Context Whether Jesus and Peter use the same word for love here depends entirely on the edition you are holding, and the editions in this app do three different things. This English one has Jesus ask twice with one word and switch to Peter's word the third time, while Peter uses the same weaker word all three times, so the exchange visibly closes a gap. The Sainte Bible libre pour le monde does the same in French. Louis Segond 1910, the Riveduta 1927 and the Luther 1912 flatten it: one verb throughout, asked and answered identically three times. The Petrus Canisiusvertaling does a fourth thing, keeping a different verb for each speaker but never switching at the third question. Six editions were opened and read for this note. Nothing about which is right can be settled here, and the file only tells a reader what is on their own page.
Verses 20-25
Simply Peter turns and sees the disciple Jesus loved following, and asks what about him. Jesus says that if he wants him to stay until he comes, that is not Peter's business, and tells him again to follow. A rumour went round that this disciple would not die, and the writer corrects it carefully: that is not what was said. The book closes by saying this disciple wrote these things, that we know his testimony is true, and that the world could not hold the books if everything were written.
Context Verse 23 is the only place in the four Gospels where a text stops to correct something people were saying about itself, and it does it by quoting the sentence again exactly and pointing at what it did not say. That is a careful thing to do and it is done about a rumour, not a doctrine. Verse 24 names the beloved disciple as the writer without naming him, which leaves the book's five references to him at 13:23, 19:26, 20:2, 21:7 and 21:20 unnamed to the last line. The final sentence is deliberate excess and it says so, beginning with I suppose.