John 14:20 · Bible study
John 14:20 Commentary: The Day of Experiential Knowledge
Greek · 10 what the commentators say
Meaning in one sentence
Explore John 14:20: the 'day' believers experientially know the mutual indwelling of Father, Son, and themselves through the Spirit.
Research Summary
- Meaning: After his resurrection and the Spirit's coming, believers will experientially know the mutual indwelling of the Father, Son, and themselves.
- Key words: 'In that day' (ἐν ἐκείνῃ τῇ ἡμέρᾳ), the era from resurrection onward; 'you will know' (γνώσεσθε), experiential knowledge; 'I am in my Father', Christ's unity with the Father.
- Main debate: Whether 'that day' refers primarily to the resurrection, Pentecost, the entire church age, or the final day, most hold it includes all but starts at resurrection/Pentecost.
- Theological theme: Union with Christ, the believer's identification with Christ and Christ's indwelling presence, rooted in the Son's union with the Father.
- Best use: Teaching on the Holy Spirit's role in making Christ's presence known; encouraging believers in their identity and security in Christ.
Translation Comparison
BSB Berean Standard Bible 2020
On that day you will know that I am in My Father, and you are in Me, and I am in you.
WEB World English Bible 2000
In that day you will know that I am in my Father, and you in me, and I in you.
KJV King James Version 1769
At that day ye shall know that I am in my Father, and ye in me, and I in you.
ASV American Standard Version 1901
In that day ye shall know that I am in my Father, and ye in me, and I in you.
YLT Young's Literal Translation 1898
in that day ye shall know that I am in my Father, and ye in me, and I in you;
Darby Darby Bible 1890
In that day ye shall know that I [am] in my Father, and ye in me, and I in you.
Douay-Rheims Douay-Rheims Bible 1899
In that day you shall know that I am in my Father: and you in me, and I in you.
Translations in other languages (10 available)
En aquel día vosotros conoceréis que yo estoy en mi Padre, y vosotros en mí, y yo en vosotros.
Naquele dia conhecereis que estou em meu Pai, e vós em mim, e eu em vós.
En ce jour-là, vous connaîtrez que je suis en mon Père, que vous êtes en moi, et que je suis en vous.
An dem Tage werdet ihr erkennen, daß ich in meinem Vater bin und ihr in mir und ich in euch.
In dien dag zult gij bekennen, dat Ik in Mijn Vader ben, en gij in Mij, en Ik in u.
In quel giorno conoscerete che io sono nel Padre mio, e voi in me ed io in voi.
W on dzień wy poznacie, żem ja jest w Ojcu moim, a wy we mnie, i ja w was.
В тот день узнаете вы, что Я в Отце Моем, и вы во Мне, и Я в вас.
到 那 日，你們 就知道 我 在 父 裡面， 你們 在我 裡面，我 也在你們 裡面。
At that time it will be clear to you that I am in my Father, and you are in me, and I in you.
Verse in Context
Original Language (Koine Greek)
New Testament · Koine Greek · John 14:20
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 promises an experiential knowledge of mutual indwelling that the disciples would enter after Jesus's resurrection and the coming of the Spirit. Wesley and Barnes point specifically to the time after the resurrection, when Christ would manifest his living presence. Calvin extends it to the entire age of the Spirit, from Pentecost to the final resurrection, an ongoing 'day' in which believers come to know. Gill lists three possibilities (resurrection, Pentecost, last day) but insists all refer to the same reality: a deeper, more clear knowledge of unions already existing. The Greek verb γνώσεσθε (future of ginōskō) carries the sense of coming to know by experience, not mere information. As Clarke puts it, 'I will live in you by the energy of my Spirit, and ye shall live in me by faith, love, and obedience.' The consensus is clear: this 'day' is the new era of the risen Christ, in which the Spirit makes real the threefold union, Christ in the Father, believers in Christ, Christ in believers.
How settled is the interpretation?
Interpretive difficulty: Medium
Main views:
- Resurrection-focused: Wesley and Barnes point to the immediate post-resurrection appearances when Jesus would manifest his life.
- Pentecost/church age: Calvin and the Cambridge Bible view 'that day' as beginning at Pentecost and continuing through the Spirit's work until the end.
- Comprehensive: Gill includes resurrection, Pentecost, and the last day as layers of fulfillment of this promise.
What is clear: The verse promises an experiential knowledge of mutual indwelling that begins after Jesus's resurrection and is realized through the Spirit.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| The timing of 'that day' | All agree a specific time is in view when the disciples would come to know the reality. | Some (Wesley, Barnes) emphasize the resurrection appearances; others (Calvin, Cambridge) emphasize Pentecost and the ongoing age of the Spirit; Gill lists resurrection, Pentecost, and the last day as possibilities. |
| The nature of the knowledge | The knowledge is experiential, not merely intellectual, and comes through the Spirit's work. | Some traditions emphasize the role of the sacraments (e.g., Communion as a means of experiencing union), while others focus on the Spirit's inward witness through Scripture. |
| Christ's relationship with the Father ('I am in my Father') | This affirms a real union between Father and Son, and Jesus's divinity is implied. | Early Arians used the phrase to argue Christ is God only by participation (as Calvin notes), while orthodox Christians read it as asserting ontological unity. |
| The order of the two unions (you in me, I in you) | Both directional realities are essential, believers are in Christ (positional) and Christ is in believers (indwelling). | Some stress the priority of being in Christ (election/justification), others stress the experiential reality of Christ in us (sanctification/Spirit). |
Historical & Cultural Context
John 14:20 sits within Jesus's Farewell Discourse (chapters 13, 17), spoken on the night of his arrest. The disciples are troubled; Jesus has announced his departure, Peter's denial, and Judas's betrayal. He has promised 'another Counselor,' the Spirit of truth (v.16-17), and has said he will not leave them orphans but will come to them (v.18). The immediate context (v.19) sets the timeline: 'Yet a little while, and the world will see me no more; but you will see me. Because I live, you will live also.' So 'that day' is when Jesus is alive again, the resurrection and its ongoing consequences.
In Jewish thought, 'that day' could echo the Old Testament 'day of the Lord,' but here it is transformed: it is the day of Christ's victory and the Spirit's coming. The resurrection itself created a new day, the Lord's Day, Sunday, and Pentecost fifty days later poured out the Spirit that made the indwelling real. The disciples were familiar with the language of mutual indwelling from John 10:38 ('the Father is in me, and I in the Father') and would later hear it in the vine metaphor (John 15:4-5). They struggled with the notion of an invisible union; Jesus promises that after his resurrection and the Spirit's arrival, they would know it firsthand.
Culturally, the idea of a deity dwelling in people was radical to both Jewish and Greco-Roman audiences. Israel knew God's presence in the tabernacle; but here, Jesus promises personal, mutual indwelling, not just God visiting but God residing in each believer and each believer residing in Christ and the Father. This promise redefines spiritual identity: believers are not just followers but part of the very life of God, through Christ and the Spirit.
Textual Notes
The consulted sources note no significant textual variants for John 14:20. The Greek text is stable across major manuscripts.
Reception History
In the early church, John 14:20 was central to Trinitarian debates: Calvin notes that Arians used it to argue Christ is God only by participation, while orthodox writers read it as affirming the Son's full deity and the believer's real union with God. During the Reformation, Calvin himself used the verse to emphasize the Spirit's role in making Christ's life effective in believers. Wesley and Clarke, in the Methodist tradition, focused on the experiential dimension: believers know this union not by speculation but by the Spirit's direct work. In modern times, charismatic and renewal movements have prized this verse as a promise of intimate personal knowledge of Christ through the Spirit. Across all traditions, it has been a foundation for teaching on union with Christ.
Preaching This Verse
Three-point outline
- The Day Promised. 'In that day' refers to the era after Jesus's resurrection and the Spirit's outpouring. It is both a specific historical event and an ongoing reality. Every believer lives in 'that day' because the risen Christ and the indwelling Spirit define the church age.
- The Knowledge Given. The word γνώσεσθε (gnōsesthe) means experiential knowledge, not head-knowledge but heart-and-life knowing. As Calvin says, 'the only way of knowing it is when he diffuses his life in us by the secret efficacy of the Spirit.' This knowledge grows through love and obedience (v.21).
- The Union Revealed. Three concentric circles of union: Christ in the Father (eternal relationship); believers in Christ (identification); Christ in believers (indwelling). These are not separate but one reality. Faith that grasps this transforms everything, identity, security, purpose.
Five-point outline
- 'In that day', The day of resurrection and Pentecost. The disciples moved from confusion to certainty because of what they saw and experienced. For us, 'that day' began at Pentecost and continues every time the Spirit makes Christ real to a believer.
- 'You will know', Future, but not distant. The knowledge is progressive and certain. It is the direct result of the Spirit's teaching ministry (John 16:13-14).
- 'I am in my Father', Jesus's identity with the Father. This is the foundation: because He is in the Father, He can bring us into that same relationship. See John 10:38 and 14:10.
- 'You in me', Believers are incorporated into Christ. As branches in the vine (15:5), we draw life from Him. Our standing before God is 'in Christ', a position of acceptance and security.
- 'I in you', Christ's personal presence. Through the Spirit, Christ dwells in each believer. This is not symbolic but real and effective, He shapes character, empowers obedience, and produces fruit.
Illustration hooks
- Knowing that a house has heating is different from sitting by the fire. The disciples had heard about the union; they would soon feel its warmth in their own lives through the Spirit's fire.
- Learning to swim by reading a manual versus being pulled into the water by someone who knows how. The Spirit doesn't just teach about Christ; He immerses us in Him.
- The difference between looking at a road map of a foreign country and actually walking its streets. Before resurrection, disciples walked alongside Jesus; after Pentecost, they walked in Jesus.
Questions your congregation is asking
- 'How can I know for sure that Christ lives in me?' The answer lies not in feelings but in the promise: if you belong to Him, He is in you by His Spirit. Obedience and love (v.21) are the evidence.
- 'Is this union only for super-spiritual Christians?' Jesus spoke to the whole group, including doubting Thomas and impulsive Peter. The promise is for every believer, though our experience of it grows over time.
- 'What does 'in that day' mean for me today?' You live in the age of the Spirit. The same day that began at Pentecost continues. You have the same access to knowledge and union that the first disciples had, through Christ and the Spirit.
Leading a Discussion
This verse is one of the richest promises in the Farewell Discourse. Jesus speaks of a future day when his followers will know something they could not grasp before: the mutual indwelling of the Father, Son, and believers. The knowledge comes through experience, not study alone. As you discuss, help your group see both the certainty and the depth of this promise.
Discussion questions
- Read John 14:20 closely. What phrases does Jesus use to describe the relationship between himself, the Father, and the disciples?
- 'In that day', what do you think this day refers to? How do the surrounding verses (14:16-19, 21-23) help you decide?
- The Greek word for 'know' here is ginōskō, which often means personal, experiential knowledge. How is this different from knowing facts about God? Why is that distinction important for Christian life?
- Jesus says 'I am in my Father', a claim about his union with God. How does this foundation support the rest of the verse? What would happen if this part were removed?
- 'You in me, and I in you', what does it mean practically for you to be 'in Christ' and for Christ to be 'in you'? How does this go beyond just following his teachings?
- How did the disciples' experience after the resurrection and at Pentecost (Acts 2) fulfill this promise? In what ways do we experience the same thing today?
- What would change in your daily life if you were more aware of this mutual indwelling? (prayer, decisions, struggles, relationships)
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 6:56 | He who eats my flesh and drinks my blood lives in me, and I in him. |
| John 10:38 | But if I do them, though you don’t believe me, believe the works, that you may know and believe that the Father is in me, and I in the Father.” |
| John 14:10 | Don’t you believe that I am in the Father, and the Father in me? The words that I tell you, I speak not from myself; but the Father who lives in me does his works. |
| John 15:5 | I am the vine. You are the branches. He who remains in me and I in him bears much fruit, for apart from me you can do nothing. |
| John 15:7 | If you remain in me, and my words remain in you, you will ask whatever you desire, and it will be done for you. |
| John 16:23 | “In that day you will ask me no questions. Most certainly I tell you, whatever you may ask of the Father in my name, he will give it to you. |
| John 16:26 | In that day you will ask in my name; and I don’t say to you that I will pray to the Father for you, |
| John 17:7 | Now they have known that all things whatever you have given me are from you, |
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
9 public-domain commentaries, condensed into plain language.
Adam Clarke's Commentary Methodist/Wesleyan 1826
Clarke emphasizes that only after the resurrection will believers grasp fully that Christ and the Father are one. This deeper conviction comes through Christ living in them by His Spirit, and their response of living in Him by faith, love, and obedience.
Barnes' Notes on the Bible Protestant 1832
Barnes interprets "at that day" as the time after Christ's resurrection, when his life would be fully revealed to the disciples. That day brings assurance of Christ's intimate union with the Father and the unbreakable union between Christ and believers.
Calvin's Commentaries Reformed 1564
Calvin insists that knowing the mystical union between Christ and believers comes only through the Spirit's secret, life-giving power, not through idle speculation. He reads "at that day" as the ongoing age from Pentecost to the resurrection, and rejects Arian claims by noting Christ speaks here of his manifested divine power, not his eternal essence.
Cambridge Bible for Schools and Colleges Anglican 1880
This commentator identifies "that day" as the entire age from Pentecost to the end of the world, not a single moment. The knowledge comes through experience: believers discover that the Spirit's presence is Christ's presence, and through Christ, the Father's presence as well.
Geneva Bible Notes Reformed 1599
The Geneva Note draws attention to the order of mutual indwelling: Christ in the Father, believers in Christ, and Christ in believers. This knowledge, the note implies, is not abstract doctrine but a living experience that believers will fully grasp when the Spirit comes at Pentecost. The emphasis falls on the experiential reality of union with Christ.
Gill's Exposition of the Bible Baptist 1748
Gill stresses that the unions themselves—between the Father and Christ, and between Christ and believers—do not begin at that day; they already exist from eternity. What changes is the believer's knowledge, which becomes clearer and more distinct at Christ's resurrection, Pentecost, or the final resurrection.
Jamieson-Fausset-Brown Commentary Protestant 1871
JFB ties this intimate knowledge of mutual indwelling directly to the day of the Spirit's coming. Only then will believers truly grasp the union: Christ in the Father, believers in Christ, and Christ in them. This is a progressive, experiential knowledge, not a mere doctrinal statement.
Matthew Henry's Commentary Reformed/Presbyterian 1710
Henry emphasizes that Jesus departure from his disciples was neither total nor final. Though he withdrew his bodily presence, believers are never left as orphans, for they have received the adoption of sons and God becomes their everlasting Father, so their case, however sorrowful, is never truly comfortless.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley reads the phrase as having two layers: Jesus meant the disciples seeing Him after the resurrection, but the fuller fulfillment came at Pentecost. The lesser event foreshadowed the greater one, when the Spirit would bring lasting understanding.