John 17:19 · Bible study
John 17:19 Commentary: Study: Jesus' Self-Sanctification and Ours
Greek · 10 what the commentators say
Meaning in one sentence
Explore the meaning of Jesus' self-consecration in John 17:19 and how it brings about our sanctification in truth, with commentary from Calvin and others.
Research Summary
- Meaning: Jesus consecrates himself as a sacrifice so that his disciples may be truly made holy.
- Key words: 'Sanctify' (hagiazō), to set apart, dedicate, purify. 'In truth' (en alētheia), truly, really, not merely externally.
- Main debate: Whether Jesus' self-sanctification means consecration to death (most) or setting apart for office (some). Both are compatible.
- Theological theme: Christ's substitutionary consecration as the basis for the believer's sanctification, both positional and progressive.
- Best use: Teaching on the high priestly work of Christ, the nature of sanctification, and the connection between Christ's sacrifice and our holiness.
Translation Comparison
BSB Berean Standard Bible 2020
For them I sanctify Myself, so that they too may be sanctified by the truth.
WEB World English Bible 2000
For their sakes I sanctify myself, that they themselves also may be sanctified in truth.
KJV King James Version 1769
And for their sakes I sanctify myself, that they also might be sanctified through the truth.
ASV American Standard Version 1901
And for their sakes I sanctify myself, that they themselves also may be sanctified in truth.
YLT Young's Literal Translation 1898
and for them do I sanctify myself, that they also themselves may be sanctified in truth.
Darby Darby Bible 1890
and I sanctify myself for them, that they also may be sanctified by truth.
Douay-Rheims Douay-Rheims Bible 1899
And for them do I sanctify myself, that they also may be sanctified in truth.
Translations in other languages (10 available)
Y por ellos yo me santifico á mí mismo, para que también ellos sean santificados en verdad.
E por eles a mim mesmo me santifico, para que também eles seja santificados em verdade.
Et je me sanctifie moi-même pour eux, afin qu’ eux aussi soient sanctifiés par la vérité.
Ich heilige mich selbst für sie, auf daß auch sie geheiligt seien in der Wahrheit.
En Ik heilige Mijzelven voor hen, opdat ook zij geheiligd mogen zijn in waarheid.
E per loro io santifico me stesso, affinché anch’essi siano santificati in verità.
A ja poświęcam samego siebie za nich, aby i oni poświęceni byli w prawdzie.
И за них Я посвящаю Себя, чтобы и они были освящены истиною.
我為 他們的緣故， 自己 分別為聖，叫 他們 也 因 真理 成聖。
And for them I make myself holy, so that they may be made truly holy.
Verse in Context
Original Language (Koine Greek)
New Testament · Koine Greek · John 17:19
Source: STEPBible TAGNT/TEHB (CC-BY 4.0). Click or tap a morphology code to see the full parsing.
Scholars' Consensus
Commentators agree that Jesus' words 'I sanctify myself' refer not to personal purification from sin, he had none, but to his voluntary consecration to the Father for the work of redemption, specifically his sacrificial death. Adam Clarke sees an allusion to the high priest entering the holy of holies after offering sacrifice. John Wesley calls it 'I devote myself as a victim, to be sacrificed.' Gill notes that 'sanctify' here means offering himself as a sacrifice, just as OT sacrifices were 'sanctified.' This self-consecration is the ground on which the disciples' sanctification rests. The purpose clause 'that they also may be sanctified in truth' shows that Jesus' action is not isolated: his consecration creates the basis for theirs. Calvin explains that Christ's holiness flows to believers, not only by imputation (as righteousness) but also by renewal through the Spirit. The disciples' sanctification is therefore both positional and progressive, rooted in Christ's prior act.
How settled is the interpretation?
Interpretive difficulty: Low
What is clear: Jesus sets himself apart for his redemptive work on behalf of his disciples, and that act is the basis for their sanctification in truth.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| Meaning of Jesus' self-sanctification | It refers to his voluntary consecration to the Father for the work of redemption, especially his sacrificial death. | Some commentators (e.g., Gill) see it primarily as offering himself as a sacrifice; others (e.g., Poole) as setting himself apart for his priestly office. Most agree both are implied. |
| Nature of the disciples' sanctification | It is rooted in Christ's act and is a real, internal holiness, not merely external. | Calvin emphasizes both imputation of Christ's righteousness and renewal by the Spirit; others focus more on the objective consecration through Christ's sacrifice. The relationship between positional and progressive sanctification is understood differently across traditions. |
| Meaning of 'in truth' | It signifies reality and genuineness, as opposed to mere external or symbolic sanctification. | Some see it as a reference to 'the truth' of the gospel (as in v.17); others as an adverbial phrase meaning 'truly.' The Cambridge Bible distinguishes 'in truth' from 'in the truth' in v.17, the former emphasizing reality. |
| Substitutionary logic | Jesus acts 'for their sakes', his consecration is vicarious, on behalf of his disciples. | The extent of this substitution (for all humanity or only for believers) is a broader debate, but here the focus is on the disciples and those who believe through their word (v.20). |
Historical & Cultural Context
The prayer of John 17, often called the High Priestly Prayer, is set on the night before Jesus' crucifixion. Jesus has washed his disciples' feet, predicted his betrayal, and now prays aloud in their hearing. The language of 'sanctify' draws directly from the Old Testament sacrificial system. To sanctify (hagiazō) meant to set apart for God, whether a person (Jeremiah 1:5), an object (Exodus 13:2), or a sacrifice (Jeremiah 12:3, LXX). When a worshiper brought an animal for sacrifice, the animal was 'sanctified', consecrated, made holy for God's use.
Jesus applies this language to himself. He is both the priest who consecrates and the victim who is consecrated. The temple imagery would have been unmistakable to his Jewish disciples. The high priest on the Day of Atonement entered the holy of holies with blood to make atonement. Jesus is about to enter the heavenly sanctuary by his own blood. Clarke and others note that Jesus 'sanctifies' himself as the true sacrifice.
The context also includes Jesus' prayer for the disciples' sanctification in truth (v.17) and his commission: 'As you sent me into the world, even so I have sent them into the world' (v.18). Their sanctification is not merely personal purity but equipping for mission. They are to be set apart for God's purpose in the world, just as Jesus was.
The repeated 'in truth' (en alētheia) marks a contrast with merely external consecration. Jesus' sacrifice accomplishes a real, internal sanctification, not just symbolic, but actual purification by the Spirit through the word (v.17). The disciples' future role depends on this reality.
Textual Notes
The supplied sources note no significant textual variants for this verse. All major manuscripts read the same: καὶ ὑπὲρ αὐτῶν ἐγὼ ἁγιάζω ἐμαυτόν, ἵνα ὦσιν καὶ αὐτοὶ ἡγιασμένοι ἐν ἀληθείᾳ. The reading is stable across the tradition.
Reception History
This verse has been read throughout church history as a key to understanding how Christ's consecration secures the believer's holiness. John Calvin saw Jesus' sanctification as a fountain of holiness for believers, both by imputation and by the Spirit's renewal. Matthew Henry and John Gill emphasized Jesus' voluntary offering of himself as the true sacrifice, fulfilling the OT types. John Wesley highlighted 'sanctified through the truth' as a basis for entire sanctification. The verse has been central in both Reformed and Methodist traditions and continues to shape preaching on the high priestly prayer and the gift of holiness.
Preaching This Verse
Three-point outline
- Jesus consecrates himself for others. His sanctification is not for his own benefit but 'for their sakes.' This is the heart of substitutionary love.
- Jesus' self-consecration is the basis for our sanctification. Because he set himself apart as the sacrifice, we are set apart for God, cleansed, purified, and made holy.
- Sanctification is 'in truth', not a ritual fiction but a real transformation, accomplished by the Spirit through the word, which is truth.
Five-point outline
- The context: Jesus prays for his disciples on the night of his betrayal, knowing they will face the world's hatred.
- The meaning of 'sanctify': to set apart, consecrate, devote to a sacred purpose, for Jesus, his sacrificial death.
- The uniqueness of Christ's sanctification: he is both the sanctifier and the sanctified, priest and victim.
- The purpose: 'that they also may be sanctified.' Our holiness flows from his consecration, not from our own efforts.
- The environment of sanctification: 'in truth', through God's word, which is truth, and through the reality of Christ's atonement.
Illustration hooks
- A parent who gives up a career to care for a child: the sacrifice opens up a new life for the child. In a far greater way, Jesus gives himself up so that we can be set apart for God.
- In the temple, the firstfruits were offered to God and the rest of the harvest was considered sanctified. Paul uses this logic in Romans 11:16: 'If the firstfruit is holy, the lump is also holy.' Jesus is the firstfruit; we are the lump. His consecration makes ours possible.
- Think of a wedding ring: it is set apart as a symbol of commitment. Jesus' self-sanctification is like a ring placed on the Father's hand, pledging himself to our redemption, and that pledge secures our place in God's family.
Questions your congregation is asking
- How can I become holy if I keep failing? This verse shows that holiness is not first my achievement but Christ's gift. I rest in his consecration, and the Spirit works from there.
- What does 'sanctified in truth' mean for daily life? It means that God's word is the instrument of sanctification (v.17). Reading, hearing, and living the truth is how we grow in holiness.
- Does Jesus still pray for me? Yes, this prayer extends to all believers (v.20). His intercession is ongoing, and this verse shows he has already secured our sanctification through his own self-offering.
Leading a Discussion
This verse sits at the heart of Jesus' prayer for his disciples. It connects his own consecration with theirs. As you discuss, consider how Jesus' sacrifice is not just about forgiveness but about making us holy, set apart for God.
Discussion questions
- Why do you think Jesus says 'I sanctify myself'? What does that mean for his identity and mission?
- In what sense is Jesus' sanctification different from ours? (Consider his sinlessness and his role as sacrifice.)
- How does Jesus' self-consecration make our sanctification possible? Describe the connection in your own words.
- What does 'in truth' add to the idea of sanctification? Why isn't it enough to be 'set apart' in name only?
- Read John 17:17 again: 'Sanctify them in your truth; your word is truth.' How does the word function in sanctification? How have you experienced this?
- The prayer is for 'them' (the first disciples) but extends to all believers (v.20). What does it mean for you that Jesus prayed this for you?
- How does knowing that your sanctification is rooted in Christ's consecration change how you approach personal holiness today?
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)
| Isaiah 62:1 | For Zion’s sake I will not hold my peace, and for Jerusalem’s sake I will not rest, until her righteousness shines out like the dawn, and her salvation like a burning lamp. |
| Jeremiah 1:5 | “Before I formed you in the womb, I knew you. Before you were born, I sanctified you. I have appointed you a prophet to the nations.” |
| John 10:36 | do you say of him whom the Father sanctified and sent into the world, ‘You blaspheme,’ because I said, ‘I am the Son of God’? |
| John 17:17 | Sanctify them in your truth. Your word is truth. |
| I Corinthians 1:2 | to the assembly of God which is at Corinth—those who are sanctified in Christ Jesus, called saints, with all who call on the name of our Lord Jesus Christ in every place, both theirs and ours: |
| II Corinthians 4:15 | For all things are for your sakes, that the grace, being multiplied through the many, may cause the thanksgiving to abound to the glory of God. |
| II Corinthians 8:9 | For you know the grace of our Lord Jesus Christ, that though he was rich, yet for your sakes he became poor, that you through his poverty might become rich. |
| I Thessalonians 4:7 | For God called us not for uncleanness, but in sanctification. |
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 reads Jesus statement as a self-consecration to death, drawing a direct parallel to the high priest entering the holy of holies with sacrificial blood. He points out that the Greek word for sanctify here carries the sense of devoting to death, as seen in Jeremiah.
Barnes' Notes on the Bible Protestant 1832
Barnes stresses that when Jesus says "I sanctify myself," the word points to his total consecration to the work of redemption, not to any need for personal moral cleansing since he was sinless. This act serves two purposes: it gives ministers a model of devotion, and it makes believers pure through the blood he would shed.
Calvin's Commentaries Reformed 1564
Calvin insists that Christ's self-consecration is not only imputed to believers as righteousness but also becomes their actual holiness through the Spirit. He draws the analogy of firstfruits blessing the whole harvest, and points to Christ's death as the supreme display of this sanctifying work.
Cambridge Bible for Schools and Colleges Anglican 1880
The commentary distinguishes Christ's consecration from that of His disciples: Christ sets Himself apart as a sacrifice, obtaining a real internal consecration for them through the Paraclete. For the disciples, this consecration also involves redemption and cleansing from sin, and it is in reality, not merely in name or appearance.
Geneva Bible Notes Reformed 1599
The Geneva note emphasizes that Christ sets Himself apart (sanctifies Himself) specifically for the disciples' benefit, so they in turn can be made holy through the truth. His personal consecration is the ground and source of their sanctification.
Gill's Exposition of the Bible Baptist 1748
Gill clarifies that Christ's "sanctifying" himself does not mean making himself holy, since he was already sinless. Rather it means he voluntarily set himself apart as a sacrifice for his disciples alone, not for the whole world. Through this offering they are truly cleansed by him, the truth.
Jamieson-Fausset-Brown Commentary Protestant 1871
JFB draws a sharp distinction in how Jesus uses "sanctify" here. For Christ it means pure consecration without any prior cleansing. For the disciples it includes previous sanctification, since only what is already holy can be offered to God. The phrase "through the truth" points back to the truth mentioned in the previous verse.
Lange's Commentary Reformed 1857
Lange sees Christ
Matthew Henry's Commentary Reformed/Presbyterian 1710
Henry sees sanctification as more than protection from evil, an active growth in holiness that Christ prays will be confirmed, carried on, and completed. Even disciples who are already sanctified must keep pressing forward, because failing to advance is falling back. Without this ongoing transformation, Christ cannot own them as his own.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley interprets "sanctify" here as a sacrificial act: Jesus sets Himself apart not merely for holy service but as a victim to be offered up. His self-consecration is therefore a deliberate surrender to death for the sake of His followers.