King James Version

What Does John 17:19 Mean?

John 17:19 in the King James Version says “And for their sakes I sanctify myself, that they also might be sanctified through the truth. sanctified: or, truly sanct... — study this verse from John chapter 17 with commentary, cross-references, and original Greek word analysis.

And for their sakes I sanctify myself, that they also might be sanctified through the truth. sanctified: or, truly sanctified

John 17:19 · KJV


Context

17

Sanctify them through thy truth: thy word is truth.

18

As thou hast sent me into the world, even so have I also sent them into the world.

19

And for their sakes I sanctify myself, that they also might be sanctified through the truth. sanctified: or, truly sanctified

20

Neither pray I for these alone, but for them also which shall believe on me through their word;

21

That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.


Commentary

KJV Study Commentary
And for their sakes I sanctify myself (ἁγιάζω ἐμαυτόν, hagiazō emauton)—Jesus consecrates Himself to the cross, setting Himself apart for sacrificial death. This is not moral purification (Jesus is sinless), but vocational dedication to His redemptive mission. The reflexive "myself" emphasizes His voluntary self-offering (John 10:18).

That they also might be sanctified through the truth (ἵνα καὶ αὐτοὶ ὦσιν ἡγιασμένοι ἐν ἀληθείᾳ)—The disciples' sanctification depends on Christ's sanctification. The preposition en ("through/in") indicates the sphere and means of sanctification: God's revealed truth, supremely embodied in Jesus Himself (14:6). Unlike Old Testament ceremonial sanctification, this is ontological transformation—being set apart and made holy by union with the crucified and risen Christ through the Spirit of truth (v. 17).

KJV Study — Public Domain

Historical & Cultural Context

John 17 records Jesus's High Priestly Prayer on the night before His crucifixion (c. AD 30), likely in the upper room or en route to Gethsemane. Jesus consecrates Himself as both priest and sacrifice, fulfilling the Levitical system where priests sanctified themselves before offering sacrifices (Exodus 19:22). His self-sanctification inaugurates the New Covenant reality where believers are sanctified "once for all" through Christ's offering (Hebrews 10:10).

Reflection Questions

  1. How does Christ's voluntary self-sanctification for your sake deepen your understanding of His love and mission?
  2. In what ways does "sanctification through the truth" challenge modern approaches to spiritual growth that neglect Scripture and sound doctrine?

Original Language Analysis

Greek · 13 words
καὶ1 of 13

And

G2532

and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words

ὑπὲρ2 of 13

for

G5228

"over", i.e., (with the genitive case) of place, above, beyond, across, or causal, for the sake of, instead, regarding; with the accusative case super

αὐτοὶ3 of 13

their

G846

the reflexive pronoun self, used (alone or in the comparative g1438) of the third person, and (with the proper personal pronoun) of the other persons

ἐγὼ4 of 13

I

G1473

i, me

ἡγιασμένοι5 of 13

be sanctified

G37

to make holy, i.e., (ceremonially) purify or consecrate; (mentally) to venerate

ἐμαυτόν6 of 13

myself

G1683

of myself so likewise the dative case ?????? <pronunciation strongs="em-ow-to'"/>, and accusative case ??????? <pronunciation strongs="em-ow-ton'"/>

ἵνα7 of 13

that

G2443

in order that (denoting the purpose or the result)

καὶ8 of 13

And

G2532

and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words

αὐτοὶ9 of 13

their

G846

the reflexive pronoun self, used (alone or in the comparative g1438) of the third person, and (with the proper personal pronoun) of the other persons

ὦσιν10 of 13

might

G5600

(may, might, can, could, would, should, must, etc.; also with g1487 and its comparative, as well as with other particles) be

ἡγιασμένοι11 of 13

be sanctified

G37

to make holy, i.e., (ceremonially) purify or consecrate; (mentally) to venerate

ἐν12 of 13

through

G1722

"in," at, (up-)on, by, etc

ἀληθείᾳ13 of 13

the truth

G225

truth


Study Guide

Historical Context

This verse is found in the book of John. Understanding the historical and cultural background helps illuminate its meaning for the original audience and for us today.

Theological Significance

John 17:19 contributes to our understanding of God's character and His relationship with humanity. Consider how this verse connects to the broader themes of Scripture.

Cross-References

Verses related to John 17:19 from Treasury of Scripture Knowledge

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