Verse Lens · Expanded explanation

John 13:21 Explained in Context

Use this verse as a doorway into the larger passage—not as an isolated saying.

Selected verse

Verse 21. When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me.

King James Version — public domain in the United States · Bible text and permissions

Quick Meaning

This verse opens Jesus Identifies the Betrayer and Judas Goes into Night by recording the wording that preserves speech that redirects the scene or presses its claim: “When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me”.

Read It With

  • John 13:21-30

Read John 13:21 with 13:21-30. This verse opens Jesus Identifies the Betrayer and Judas Goes into Night by recording the wording that preserves speech that redirects the scene or presses its claim: “When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me”. The controlling movement is: Jesus is troubled, the disciples wonder whom he means, the Beloved Disciple asks at Peter's prompting, Jesus gives Judas the dipped piece, Satan enters him, and he leaves into night while others misunderstand.

Why This Verse Appears Here

This verse opens Jesus Identifies the Betrayer and Judas Goes into Night by recording the wording that preserves speech that redirects the scene or presses its claim: “When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me”. As the opening turn in Jesus Identifies the Betrayer and Judas Goes into Night, it preserves the narrative pressure that gives the line its force: Jesus is troubled, the disciples wonder whom he means, the Beloved Disciple asks at Peter's prompting, Jesus gives Judas the dipped piece, Satan enters him, and he leaves into night while others misunderstand.

Follow the Context

  1. John 13:21-30 is a coherent Johannine movement titled “Jesus Identifies the Betrayer and Judas Goes into Night.” The change in speaker, place, audience, festival setting, or narrated response at each edge gives this unit its natural limits.
  2. Jesus is troubled, the disciples wonder whom he means, the Beloved Disciple asks at Peter's prompting, Jesus gives Judas the dipped piece, Satan enters him, and he leaves into night while others misunderstand.
  3. Judas acts as one disciple under layered moral and satanic description; he is not a representative of Jewish people. The morsel may be hospitality or identification, not Eucharistic condemnation. The Beloved Disciple's privileged place is literary testimony but does not prove a historical identity.

What This Verse Is Not Saying

Satan entering Judas does not remove human responsibility or diagnose ordinary betrayal as possession.

What Remains True

This verse opens Jesus Identifies the Betrayer and Judas Goes into Night by recording the wording that preserves speech that redirects the scene or presses its claim: “When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me”. Its enduring force supports this passage-controlled response: Take betrayal risk seriously, seek clarity without scapegoating a group, and remember that insiders can misunderstand danger in their midst.

How It Can Shape Life

  • For John 13:21, practice this verse's particular contribution by doing the following without outrunning John 13:21-30: Take betrayal risk seriously, seek clarity without scapegoating a group, and remember that insiders can misunderstand danger in their midst.

Teach It Back

Explain how John 13:21 opens Jesus Identifies the Betrayer and Judas Goes into Night by recording the wording that preserves speech that redirects the scene or presses its claim: “When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me”. Include 13:21-30, one stated uncertainty, and the misuse boundary attached to this Lens.

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Continue in Context

The full thought-unit study remains the final contextual authority for this Verse Lens.

Read John 13:21-30 — Jesus Identifies the Betrayer and Judas Goes into Night
Sources used for this Verse Lens

How certain is this explanation? probable

Where care is needed

The strongest reading follows the immediate movement and John's whole-book design while keeping this material limit visible: Judas acts as one disciple under layered moral and satanic description; he is not a representative of Jewish people. The morsel may be hospitality or identification, not Eucharistic condemnation. The Beloved Disciple's privileged place is literary testimony but does not prove a historical identity.

These are the sources used directly for this lens. Language, grammar, disagreements, and the complete source shelf remain attached to the full thought-unit research record.

Biblical text

King James (Authorized) Version — eng-kjv2006

eBible.org and CrossWire Bible Society

USFM archive eng-kjv2006_usfm.zip; source files dated 2026-08-19; downloaded 2026-08-24; archive SHA-256 aec1b3b26c622fd3d963d2bbac963016b9513246ffbfa20da00bb100372ea007; normalized corpus SHA-256 09aef51d90488aa7b9722b3fd9a93f4b25f6bf2064c5fd798fb39673c300ddf2.

Supports: Exact KJV wording, paragraph flags, supplied-word markup, and coverage.

Exact location: John 13:21-30, pinned eng-kjv2006 USFM corpus

Open source ↗

Greek textual evidence

The Greek New Testament: SBL Edition

Michael W. Holmes, editor; Society of Biblical Literature and Logos

Society of Biblical Literature and Logos Bible Software, 2010

Supports: Greek wording, sentence relations, and critical-text reading checked independently of the KJV.

Exact location: Faithlife SBLGNT official repository, data/sblgnt/text/John.txt, 13:21-30

Open the John Greek text file ↗

Translation and textual notes

NET Bible — John with translators' and textual notes

Biblical Studies Press

Biblical Studies Press, 2005–2026 online edition

Supports: Verse-level syntax, older-English clarification, material variants, background, and alternatives.

Exact location: NET Bible John PDF, John 13:21-30 and attached translator, study, and textual notes

Open the official NET John PDF ↗
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