John 21:24 · Bible study
John 21:24 Commentary: The Disciple's Witness and the 'We' of Truth
Greek · 10 what the commentators say
Meaning in one sentence
Who wrote John's Gospel? This verse identifies the beloved disciple as the author and adds a community affirmation that his testimony is true.
Research Summary
- Meaning: John identifies himself as the author and attests with his readers that his witness is true.
- Key words: μαρτυρῶν (present participle, ongoing testimony), γράψας (aorist participle, completed writing), οἴδαμεν (perfect, settled knowledge).
- Main debate: Whether the 'we' includes John or represents a later addition by the Ephesian church.
- Theological theme: The reliability of apostolic testimony and the communal nature of faith.
- Best use: To show that the Gospel rests on eyewitness history affirmed by the early Christian community.
Translation Comparison
BSB Berean Standard Bible 2020
This is the disciple who testifies to these things and who has written them down. And we know that his testimony is true.
WEB World English Bible 2000
This is the disciple who testifies about these things, and wrote these things. We know that his witness is true.
KJV King James Version 1769
This is the disciple which testifieth of these things, and wrote these things: and we know that his testimony is true.
ASV American Standard Version 1901
This is the disciple that beareth witness of these things, and wrote these things: and we know that his witness is true.
YLT Young's Literal Translation 1898
this is the disciple who is testifying concerning these things, and he wrote these things, and we have known that his testimony is true.
Darby Darby Bible 1890
This is the disciple who bears witness concerning these things, and who has written these things; and we know that his witness is true.
Douay-Rheims Douay-Rheims Bible 1899
This is that disciple who giveth testimony of these things and hath written these things: and we know that his testimony is true.
Translations in other languages (10 available)
Este es aquel discípulo que da testimonio de estas cosas, y escribió estas cosas: y sabemos que su testimonio es verdadero.
Este é o discípulo que testemunha destas coisas, e estas coisas escreveu; e sabemos que seu testemunho é verdadeiro.
C’ est ce disciple qui rend témoignage de ces choses, et qui les a écrites. Et nous savons que son témoignage est vrai.
Dies ist der Jünger, der von diesen Dingen zeugt und dies geschrieben hat; und wir wissen, daß sein Zeugnis wahrhaftig ist.
Deze is de discipel, die van deze dingen getuigt, en deze dingen geschreven heeft; en wij weten, dat zijn getuigenis waarachtig is.
Questo è il discepolo che rende testimonianza di queste cose, e che ha scritto queste cose; e noi sappiamo che la sua testimonianza è verace.
Tenci jest on uczeń, który świadczy o tem, i to napisał; a wiemy, że prawdziwe jest świadectwo jego.
Сей ученик и свидетельствует о сем, и написал сие; и знаем, что истинно свидетельство его.
為這些事 作 見證，並且 記載 這些事 的 就是 這 門徒；我們也 知道 他 的見證 是 真的。
This is the disciple who gives witness about these things and who put them in writing: and we have knowledge that his witness is true.
Verse in Context
Original Language (Koine Greek)
New Testament · Koine Greek · John 21:24
Source: STEPBible TAGNT/TEHB (CC-BY 4.0). Click or tap a morphology code to see the full parsing.
Scholars' Consensus
Commentators across traditions agree that this verse identifies John, the beloved disciple, as the author of the Gospel and asserts the truth of his testimony. Barnes notes that this verse proves the beloved disciple was John, and the appeal to universal knowledge ('we know') rests on his long-known character for truthfulness. Calvin says John now declares himself in the first person so that greater weight may attach to the words of an eyewitness. Gill argues that the testimony of one who saw and heard must be known and owned by all as true. On the phrase 'we know,' there is divergence: some see John including himself with his readers (so Meyer and Alford), while Lange brackets the words as a later addition from the Ephesian church, and Wesley holds that the church added these words. Yet all hold that the disciple is John and that the Gospel rests on reliable eyewitness testimony.
How settled is the interpretation?
Interpretive difficulty: Medium
Main views:
- John's inclusive 'we': John identifies with his readers or fellow witnesses, as in 1 John 1:1–2 and John 1:14.
- Church addition: The shift to plural 'we' is unlike John's usual style; it may be a formal attestation from the Ephesian elders (Lange, Cambridge).
What is clear: The disciple in question is John, the beloved disciple, and the content of the Gospel—especially chapter 21—is affirmed as his true testimony.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| Authorship of John's Gospel | All traditions hold that the beloved disciple is the apostle John, son of Zebedee. | Whether verses 24, 25 were written by John himself or added later by the Ephesian elders. |
| The identity of the 'we' | The phrase 'we know' affirms the truth of John's testimony. | Some see it as John including his readers in a plural of solidarity (e.g., Meyer, Alford); others see it as a formal note from the church community (e.g., Lange, Cambridge, Wesley). |
| Third-person self-reference | John consistently refers to himself indirectly (e.g., 'the disciple whom Jesus loved'). | Whether this is a literary technique for humility or an indication that someone else wrote the verse about him. |
| Testimony as evidence for faith | The verse grounds Christian belief in reliable, firsthand witness. | How far the community's endorsement ('we know') carries authority, some traditions emphasize individual assent, others the church's role in affirming Scripture. |
Historical & Cultural Context
John 21:24 stands as the conclusion to the Gospel's epilogue. The preceding verses (21:20, 23) addressed a rumor that the beloved disciple would not die, arising from Jesus' words to Peter. This verse clarifies that the disciple in question is the author himself, still alive and writing.
In Jewish culture, a testimony was established by two or three witnesses (Deut. 19:15; see also John 8:17). The plural 'we know' echoes this legal standard, placing the Gospel's truth on multiple attestations. The Johannine community, likely based in Ephesus, treasured John's apostolic authority. Cambridge Bible suggests that this may be a note added by the Ephesian elders before publication, giving a communal stamp of approval. Wesley compares it to Tertius adding a greeting to Paul's Epistle to the Romans (Rom. 16:22).
The third-person self-reference ('this is the disciple') is consistent with John's style throughout the Gospel (e.g., 13:23; 19:26; 20:2). He never names himself directly, yet he carefully identifies his role as an eyewitness. The verse thus serves both as a signature and as an invitation to trust the apostolic account.
Textual Notes
The Greek manuscript tradition is stable for this verse. The only notable variant mentioned by Adam Clarke is an isolated conjecture reading οιδα μεν ('I know indeed') instead of οιδαμεν ('we know'), but this has no manuscript support. All major witnesses (P66, P75, Sinaiticus, Vaticanus, etc.) read οιδαμεν. No other significant textual variants are reported in the consulted sources.
Reception History
From the early church, John 21:24 was recognized as attesting the apostle John's authorship. Irenaeus (c. 180 AD) appeals to John's Gospel as the work of the disciple who reclined on Jesus' breast, drawing on this very self-identification. Later, Eusebius records the tradition that John lived to old age in Ephesus, confirming the rumor addressed in verse 23. Throughout the Middle Ages, commentators saw the verse as a seal on the Gospel's trustworthiness. Protestant Reformers like Calvin used it to argue for the credibility of eyewitness over tradition. In modern times, the verse has been central to debates about redaction and community authorship, but it continues to function as a hinge between the Gospel's narrative and the reader's faith: the community that preserved these words still invites us to say 'we know.'
Preaching This Verse
Three-point outline
- The eyewitness foundation. John grounds his Gospel in what he saw and heard. He does not argue from speculation but from presence (1 John 1:1, 2). Christian faith rests on historical testimony, not myth.
- The humility of the witness. John refers to himself in the third person, even after a rumor about his own immortality. He draws attention not to himself but to Jesus and to the truth of the message.
- The community's confirmation. The 'we know' shows that John's testimony was not private. It was recognized and endorsed by those who knew him. The church continues to affirm the apostolic witness.
Five-point outline
- Self-identification. The beloved disciple is named as the author.
- Continuous testimony. The present participle 'testifies' indicates ongoing witness beyond the written page.
- Completed writing. The aorist participle 'wrote' marks the Gospel as a finished, deliberate work.
- Shared certainty. 'We know' conveys settled knowledge (perfect tense) shared by a community.
- True testimony. The claim of truth invites belief and trust (see John 20:31).
Illustration hooks
- A court case where the key witness is cross-examined, eventually his character is so well known that the jury trusts him without question (Barnes' point about John's reputation).
- An elderly family member telling stories around the table. The younger generation asks, 'Is that really true?' And a chorus of older voices says, 'We know it's true, we were there.'
- A biography that relies on the subject's own letters and the corroboration of friends. The final page includes a note from the editor: 'We have verified these facts.'
Questions your congregation is asking
- How can we know the Bible is not just human invention?
- Why does John never name himself when other gospel writers do?
- Does the 'we know' mean I have to rely on other Christians to confirm my faith?
Leading a Discussion
The closing words of John's Gospel do more than sign off. They name the author, affirm his integrity, and invite the reader to share the community's confidence. As you discuss this passage, consider both the historical claim and the shape of trust it creates.
Discussion questions
- Read John 21:20, 25. Why do you think the misunderstanding about John's death is clarified here?
- What does it mean that the disciple 'testifies to these things'? (Note the present tense in Greek.) How does that affect how you read the Gospel?
- Who do you think the 'we' refers to? What difference does your answer make for how we understand the Gospel's authority?
- John often refers to himself in third person. What does that reveal about his character and purpose?
- Compare John 21:24 with John 19:35 and 1 John 1:1, 3. How does the emphasis on 'seeing and testifying' run through John's writings?
- In what ways does your own faith community 'testify' to the truth of the Gospel today? How does that strengthen or challenge individual believers?
- This verse claims that the testimony is true. How would you explain to a sceptic why the testimony of the beloved disciple is reliable?
Word Study
The key original-language words in this verse. Select any word for its full lexicon entry — meaning, every occurrence in Scripture, and related words.
Cross-References
Source: Treasury of Scripture Knowledge (TSK, public domain)
| John 15:27 | You will also testify, because you have been with me from the beginning. |
| John 19:35 | He who has seen has testified, and his testimony is true. He knows that he tells the truth, that you may believe. |
| I John 1:1 | That which was from the beginning, that which we have heard, that which we have seen with our eyes, that which we saw, and our hands touched, concerning the Word of life |
| I John 1:2 | (and the life was revealed, and we have seen, and testify, and declare to you the life, the eternal life, which was with the Father, and was revealed to us); |
| I John 5:6 | This is he who came by water and blood, Jesus Christ; not with the water only, but with the water and the blood. It is the Spirit who testifies, because the Spirit is the truth. |
| III John 1:12 | Demetrius has the testimony of all, and of the truth itself; yes, we also testify, and you know that our testimony is true. |
Interlinear and lexical data from STEPBible (CC BY 4.0). Cross-reference data from OpenBible.info (CC BY 4.0). Commentaries are public domain.
For personal reflection
Read the devotional page — prayer, application, and "for families"
What the Commentators Say
10 public-domain commentaries, condensed into plain language.
Adam Clarke's Commentary Methodist/Wesleyan 1826
Clarke argues that the verses containing "We know" were likely
Barnes' Notes on the Bible Protestant 1832
Barnes argues that the beloved disciple's reputation for truthfulness was so well-known it had become almost proverbial. He finds it impossible that such a man would deliberately write a false book, so the Gospel is trustworthy, and Christianity itself is confirmed as a religion from heaven.
Calvin's Commentaries Reformed 1564
Calvin observes that John waited until the end of his Gospel to identify himself as the beloved disciple. By doing so, John puts the full weight of his personal eyewitness behind everything he has written, making his testimony more credible and authoritative for his readers.
Cambridge Bible for Schools and Colleges Anglican 1880
The Cambridge commentary notes that while external evidence favors John as author of the final verses, the wording of verse 24 suggests a group of witnesses rather than the apostle himself. This may be a note added by Ephesian elders, though John could also be affectionately including his closest hearers in his own testimony.
Geneva Bible Notes Reformed 1599
The Geneva note identifies the disciple himself as both the eyewitness and the writer of these events. The plural "we know" signals that the early church community joins together to affirm the truth of his testimony.The Geneva note identifies the disciple himself as both the eyewitness and the writer of these events. The plural "we know" signals that the early church community joins together to affirm the truth of his testimony.
Gill's Exposition of the Bible Baptist 1748
Gill stresses that John wrote the whole Gospel as an eyewitness, so his testimony is universally accepted as true and unquestionable. The plural "we know" reflects either the apostle speaking for all people or the church's formal attestation that John's account is reliable.
Jamieson-Fausset-Brown Commentary Protestant 1871
JFB notes that this verse expressly identifies the disciple John as the author, connecting all the book's earlier statements about "the disciple whom Jesus loved" with the writer himself. They also observe the strong affirmation of his testimony's truth, echoing an earlier claim in the same Gospel.
Lange's Commentary Reformed 1857
Lange insists that John’s Gospel is not a chronicle but a concentrated, symbolic selection of events. The closing hyperbole about the world’s inability to contain all Jesus did is not exaggeration but a deliberate signal: the infinite fullness of Christ’s life can only be grasped through ideally transparent facts, not through exhaustive detail or endless books.
Matthew Henry's Commentary Reformed/Presbyterian 1710
Henry notes that John describes himself not by name but as the disciple Jesus loved, showing his humility and his reason for staying close to Christ. Peter's question about John's future gets answered with a rebuke: each disciple's path belongs to the Lord alone, not to another's curiosity.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley points out that the words "we know that his testimony is true" were not written by John himself but inserted by the early church, just as Tertius added a personal note to Paul's letter to the Romans. This shows the community confirmed John's authorship while he was still alive.