Day 21 · The Gospel of John: The Word Became Flesh

John 17

John 17 — That They May Be One

Pray to Begin

Ask — that the Holy Spirit would let you overhear this prayer as the prayer it is: the Son speaking to the Father about you, on the night before He died.

Give thanks — that before the soldiers came, before the trial, before the nails, Jesus was already praying for the ones who would believe in Him “through their message” (17:20) — which means He was praying for you.

Yield — every smaller thing you have wanted to ask for, and let His own request rise first in your heart: that they may be one; that they may be with Me; that they may see My glory.

Today’s Passage: John 17

The long supper is over. The Upper Room teaching (chapters 13–16) is finished. And now, before Jesus crosses the Kidron Valley into the garden where He will be arrested (18:1), He lifts His eyes to heaven and prays aloud. The early church called this the High Priestly Prayer — the great intercession of our High Priest on the threshold of His sacrifice. It moves in three widening circles: Jesus prays for Himself (vv. 1–5), then for the disciples in the room (vv. 6–19), then for every believer who would ever come after (vv. 20–26). It is the longest recorded prayer of Jesus in any Gospel, and it is the holiest ground in John. We are not reading about prayer here; we are permitted to listen in. (The text is quoted block by block in the commentary below.)

As you read, hold this: The Son lifts His eyes to the Father and prays His way into the cross — for Himself, for His own, and for everyone who will ever believe.

Context The world of John 17

A prayer on the threshold of sacrifice. John 17 sits in a precise place: after the farewell discourse, before the garden (18:1). Jesus prays out loud, in the disciples’ hearing, on the last night of His earthly life. In the ancient world a final blessing or prayer before death carried enormous weight (think of Jacob over his sons, Genesis 49; Moses over Israel, Deuteronomy 33). This is Jesus’ deathbed prayer — but spoken not in resignation, only hours before the cross, with His eyes lifted to heaven, not bowed in despair.

The High Priest interceding. The early church (and the title “High Priestly Prayer,” from the 16th-century theologian David Chytraeus) saw here the Great High Priest at work. On the Day of Atonement, Israel’s high priest would carry the names of the tribes on his breastpiece into the Holy Place and intercede for the people (Exodus 28:29). Jesus does exactly this — He carries His people by name before the Father — and then, unlike any earlier priest, He goes on to become the sacrifice He has just consecrated Himself to be (17:19). Hebrews will make the connection explicit: He “always lives to intercede” for those who come to God through Him (Hebrews 7:25).

Sanctified in truth, sent into the world. Jesus refuses to pray His people out of the world (17:15). This was not the instinct of the era’s piety; the Essenes withdrew to the desert, the Pharisees built fences against contamination. Jesus prays the opposite: keep them in the world, set apart by truth, and send them into it as the Father sent Him (17:18). Holiness here is not separation from people but consecration for mission.

The glory shared before the world began. Verse 5 and verse 24 frame the prayer with a breathtaking claim: the Son shared the Father’s glory “before the world existed” and was loved “before the foundation of the world.” This is the same eternal Word of the prologue (1:1–2), now praying His way back to the glory He stepped down from — and asking that His people be brought up to see it.

John 17:1–5 (BSB)

¹ When Jesus had spoken these things, He lifted up His eyes to heaven and said, “Father, the hour has come. Glorify Your Son, that Your Son may glorify You. ² For You granted Him authority over all people, so that He may give eternal life to all those You have given Him. ³ Now this is eternal life, that they may know You, the only true God, and Jesus Christ, whom You have sent. ⁴ I have glorified You on earth by accomplishing the work You gave Me to do. ⁵ And now, Father, glorify Me in Your presence with the glory I had with You before the world existed.

Word study "Eternal life" — zōē aiōnios (John 17:3)

Greek: ζωὴ αἰώνιος (zōē aiōnios), pronounced zo-AY eye-OH-nee-os. Strong’s G2222 (zōē, “life”) and G166 (aiōnios, “eternal, of the age to come”). Zōē is the deep word for life itself — not mere existence (bios) but the life that is in God. Aiōnios is not just “endless duration”; it is the quality of the coming age, God’s own kind of life breaking into ours now.

What makes this verse staggering is that Jesus defines the term: “Now this is eternal life, that they may know You, the only true God, and Jesus Christ, whom You have sent” (17:3). Eternal life is not first a length of time but a Person known. It is relationship — the knowing (Greek ginōskō, intimate, experiential knowledge, not mere information) of the Father and the Son. The same Gospel opened by promising that “to all who received Him… He gave the right to become children of God” (1:12); here Jesus tells us what that childhood is: to know God. Heaven is not extended time; it is unbroken communion. And it has already begun in anyone who knows Him.

Word study "Glorify" — doxazō (John 17:1, 5)

Four Greek words carry the weight of this prayer.

Greek: δοξάζω (doxazō), pronounced dox-AD-zoh. Strong’s G1392.

Doxazō means “to glorify, to honor, to clothe with splendor, to make the true weight of a thing visible.” It comes from doxa — glory, the radiant weight of who someone really is. The prayer opens and closes on this word. “Father, the hour has come. Glorify Your Son, that Your Son may glorify You” (17:1). In John’s Gospel, the “hour” Jesus has spoken of since Cana (2:4) has finally arrived — and shockingly, the way the Son will be glorified is the cross. Here “glorify Me” means “lead Me to be lifted up to die,” because at Golgotha the full weight of God’s self-giving love becomes visible. Then in 17:5 He reaches back before time: “glorify Me in Your presence with the glory I had with You before the world existed.” The same verb spans eternity past and Friday’s cross. The Son asks to be restored to the splendor He never stopped possessing — and to be crowned with it precisely by going down into death first.

He lifts His eyes — not bowing in shame but looking up as a Son to a Father. “The hour” He has guarded since the wedding at Cana (2:4) has come, and He greets it by asking to be glorified. We expect a prayer to escape the hour; instead He prays to be led through it, because the cross is the place His glory and the Father’s will be most fully revealed. Verse 3 is the diamond: eternal life defined — not as duration but as knowing God.

And verse 4 is staggering in its tense — “I have glorified You… by accomplishing the work” — spoken before a single nail, yet already counting the cross as good as done. Verse 5 reaches behind the world’s foundations: the Son asks to be restored to a glory He had “before the world existed,” the unmistakable claim of the eternal Word (1:1).

John 17:6–10 (BSB)

⁶ I have revealed Your name to those You have given Me out of the world. They were Yours; You gave them to Me, and they have kept Your word. ⁷ Now they know that everything You have given Me comes from You. ⁸ For I have given them the words You gave Me, and they have received them. They knew with certainty that I came from You, and they believed that You sent Me. ⁹ I ask on their behalf. I do not ask on behalf of the world, but on behalf of those You have given Me; for they are Yours. ¹⁰ All I have is Yours, and all You have is Mine; and in them I have been glorified.

The second circle opens: Jesus prays for the men in the room. Notice how tenderly He describes them — not as deserters (which by dawn they will be) but as those who “have kept Your word” and “received” His words and “believed.” He sees them not by their failure but by the faith the Father has planted in them. Four times in these verses they are spoken of as a gift the Father gave the Son. And v. 10 holds one of the quietest claims to deity in all of Scripture: “All I have is Yours, and all You have is Mine.” Only God can say that to God. The disciples — stumbling, frightened, about to scatter — are nonetheless where the Son is “glorified.”

John 17:11–13 (BSB)

¹¹ I will no longer be in the world, but they are in the world, and I am coming to You. Holy Father, protect them by Your name, the name You gave Me, so that they may be one as We are one. ¹² While I was with them, I protected and preserved them by Your name, the name You gave Me. Not one of them has been lost, except the son of destruction, so that the Scripture would be fulfilled. ¹³ But now I am coming to You; and I am saying these things while I am in the world, so that they may have My joy fulfilled within them.

Jesus is going; they are staying. So He hands them to the Father with the address “Holy Father” — the only place in Scripture that exact title appears. His first and deepest request for them is protection, and His goal is oneness — “that they may be one as We are one,” the divine unity itself as the pattern. Verse 12 is sober: Judas, “the son of destruction,” is lost — but by his own choosing and in fulfillment of Scripture, not by any failure of Jesus’ keeping. And v. 13 reveals why He prays aloud: He wants the disciples to overhear, so that His joy — His own settled gladness in the Father even on this night — would be “fulfilled within them.” He prays in their hearing as a gift.

John 17:14–16 (BSB)

¹⁴ I have given them Your word and the world has hated them. For they are not of the world, just as I am not of the world. ¹⁵ I am not asking that You take them out of the world, but that You keep them from the evil one. ¹⁶ They are not of the world, just as I am not of the world.

Here is the Christian’s strange citizenship: in the world, hated by the world, but not of the world. Jesus does not pray for escape — no rapture out of the difficulty, no monastery wall. He prays for keeping: “keep them from the evil one.” The believer is left in the place of conflict on purpose. Twice He repeats “not of the world,” bracketing v. 15 so the point cannot be missed: the answer to the world’s hostility is not withdrawal but divine protection in the midst of it.

John 17:17–19 (BSB)

¹⁷ Sanctify them by the truth; Your word is truth. ¹⁸ As You sent Me into the world, I have also sent them into the world. ¹⁹ For them I sanctify Myself, so that they too may be sanctified by the truth.

Word study "Sanctify" — hagiazō (John 17:17, 19)

Greek: ἁγιάζω (hagiazō), pronounced hah-gee-AD-zoh. Strong’s G37.

Hagiazō means “to make holy, to consecrate, to set apart for God’s exclusive use.” It is the verb behind every holy thing in the Old Testament — the altar, the priests, the firstborn, the Sabbath: things claimed by God and dedicated to His purpose. Jesus prays, “Sanctify them by the truth; Your word is truth” (17:17). He is asking the Father to set His people apart — not by removing them from the world (He explicitly refuses that in v. 15) but by consecrating them in the midst of it, with the truth of God’s word as the very means. Then comes the astonishing turn in v. 19: “For them I sanctify Myself.” The sinless Son does not need cleansing; here hagiazō means He sets Himself apart as the consecrated sacrifice — He devotes Himself to the cross so that His people can be made holy. The Priest is also the offering. The same root gives us hagios (holy) and hagioi (the “saints,” the set-apart ones) — the church’s truest name.

The keeping of v. 15 now deepens into consecration. “Sanctify them” — set them apart for God — and the means is named with precision: “by the truth; Your word is truth.” Holiness is not vague piety; it is being shaped by the word of God. Verse 18 immediately turns the set-apart people outward: they are sanctified for sending — “As You sent Me… I have also sent them.” And v. 19 is the heart of the prayer’s logic: “For them I sanctify Myself.” The Son consecrates Himself as the sacrifice so that they can be made holy. His self-offering on the cross is the source of every believer’s sanctification.

John 17:20–23 (BSB)

²⁰ I am not asking on behalf of them alone, but also on behalf of those who will believe in Me through their message, ²¹ that all of them may be one, as You, Father, are in Me, and I am in You. May they also be in Us, so that the world may believe that You sent Me. ²² I have given them the glory You gave Me, so that they may be one as We are one— ²³ I in them and You in Me—that they may be perfectly united, so that the world may know that You sent Me and have loved them just as You have loved Me.

Word study "One" — heis (John 17:21, 22, 23)

Greek: ἕν (hen, neuter of heis), pronounced hen. Strong’s G1520.

Heis is simply the number “one” — but Jesus presses it into the loftiest theological use in Scripture. Four times He prays “that they may be one” (vv. 11, 21, 22, 23). The stunning pattern is the measure of it: “that all of them may be one, as You, Father, are in Me, and I am in You” (17:21). The unity He asks for His people is patterned on the unity of the Father and the Son — a oneness of love, indwelling, and shared glory, not mere organizational agreement. This is the same hen of the great Shema confession that God is one (Deuteronomy 6:4) and the same word Jesus used in 10:30, “I and the Father are one.” And the purpose is missionary: “so that the world may believe that You sent Me” (17:21) — the watching world reads the gospel in the love between believers.

The third and widest circle: you. “Those who will believe in Me through their message” — every Christian in every century, prayed for by Jesus on the night before He died. The petition is fourfold-repeated oneness, and its model is the most exalted possible: “as You, Father, are in Me, and I am in You.” This is not asking believers to merely cooperate; it is asking that the very communion of the Trinity be reflected among them — “I in them and You in Me.” And twice the purpose lands the same way: “so that the world may believe” (v. 21), “so that the world may know” (v. 23). The unity and love of Christians is the apologetic Jesus chose: the world will believe the Father sent the Son when it sees the Son’s love living among His people. Verse 23 closes with a wonder almost too great to hold — the Father has loved believers “just as You have loved Me.”

John 17:24–26 (BSB)

²⁴ Father, I want those You have given Me to be with Me where I am, that they may see the glory You gave Me because You loved Me before the foundation of the world. ²⁵ Righteous Father, although the world has not known You, I know You, and they know that You sent Me. ²⁶ And I have made Your name known to them and will continue to make it known, so that the love You have for Me may be in them, and I in them.”

The prayer ends not with a request for safety or success but for presence: “I want those You have given Me to be with Me where I am.” The deepest desire of the dying Son is that His people would be with Him and see His glory — the glory loved “before the foundation of the world,” echoing v. 5 and closing the circle the prayer opened. “Righteous Father” answers “Holy Father” of v. 11. And the final word is love: that the very love the Father has for the Son “may be in them, and I in them.” The prayer that began with glory ends with the Son indwelling His people in love. This is where John 17 leaves us — not as spectators of a distant heaven, but as those Jesus longs to have with Him, filled with the love that flows between the Father and the Son.

Study notes Going deeper

Eternal life is knowing God (17:3). The center of gravity in this prayer is not a place but a Person. Jesus does not define eternal life as streets of gold or endless years; He defines it as knowing the only true God and the One He sent. This reframes everything: salvation is relational, and it begins now. The believer does not merely await eternal life; they have already entered it the moment they know Him.

Kept and sanctified, not removed (17:11, 15, 17). Two verbs govern Jesus’ requests for His own: keep and sanctify. He does not ask the Father to airlift His people out of danger, but to guard them in it and set them apart by the truth of His word. The same balance Paul prays:

"But the Lord is faithful, and He will strengthen you and guard you from the evil one." 2 Thessalonians 3:3 (BSB)

The Christian life is lived in the world, exposed to its hatred (17:14), yet held by a faithfulness not their own.

The unity of believers as the world’s evidence (17:21–23). Jesus stakes the credibility of His mission on the love among His people: “so that the world may believe that You sent Me.” The oneness He asks for is not uniformity but the shared life and love that mirrors the Father and the Son. The earliest church understood this:

"By this everyone will know that you are My disciples, if you love one another." John 13:35 (BSB)

The watching world does not first read our doctrine; it reads our love.

The prayer that reaches to us (17:20). This is the verse that turns the whole chapter toward the reader: “I am not asking on behalf of them alone, but also on behalf of those who will believe in Me through their message.” The message of eleven frightened men reached across twenty centuries, and Jesus was praying — that night — for everyone it would ever touch. To read this prayer as a believer is to discover oneself named in it.

"Therefore He is able to save completely those who draw near to God through Him, since He always lives to intercede for them." Hebrews 7:25 (BSB)

The prayer of John 17 has not stopped. The same Lord who prayed it then lives to intercede now.

Personal Application

1. Overheard, and named. Jesus prayed aloud so His disciples — and through their message, every later believer — could overhear (17:13, 20). To read this prayer slowly is to discover that you were on Jesus’ mind and heart on the last night of His life. How does it change a hard day to know that your name is carried, even now, in the intercession of the risen Christ (Hebrews 7:25)?

2. Kept, not removed. Jesus did not pray for your removal from difficulty but for your keeping within it (17:15). Where have you been asking to be taken out of something, when the prayer Jesus prays over you is that you would be kept and sanctified right where you are? What would it look like to receive the place you’re in as the place you are sent?

3. The credibility of love. Jesus tied the world’s belief to the oneness and love among His people (17:21, 23). Honestly considered, what does the watching world read in the way you love other believers — those you find difficult included? Where might guarding unity be part of how the gospel becomes believable to someone near you?

Pray to Close

The central truth of John 17: on the threshold of the cross, the Son lifted His eyes and prayed His way into His sacrifice — asking that His people would know God, be kept and sanctified in the world, be one as the Father and Son are one, and finally be with Him to see His glory; and He was praying for everyone who would ever believe, which means He was praying for you. This prayer has not ended. He still lives to make it.

Give thanks — that eternal life is not a reward earned but a Person known (zo-AY eye-OH-nee-os, 17:3), and that knowing the Father and the Son has already begun in everyone who trusts Him.

Yield — the desire to be taken out of every hard place, and ask instead to be kept and set apart (hah-gee-AD-zoh) in it, shaped by the truth of His word.

Ask — for the grace to love His people into the kind of oneness (hen) that lets a watching world believe the Father sent the Son — and to long, with Him, to be where He is and to see His glory.


Worship for Today

The Church's One Foundation · Samuel J. Stone (1866), tune 'Aurelia' by S. S. Wesley — John Troutman, Lyric Video

John 17 is the prayer that the church would be one — one as the Father and Son are one, founded on Christ, kept in the world, longing to be with Him. Samuel Stone wrote this hymn in 1866 to defend exactly that truth: that the church’s unity rests not on human agreement but on Christ Himself. Its opening line is the answer to Jesus’ prayer set to music — the one foundation that makes the many one.

“The Church’s one foundation is Jesus Christ her Lord; she is His new creation by water and the Word. From heaven He came and sought her to be His holy bride; with His own blood He bought her, and for her life He died.”

That last line is John 17:19 in a single breath: “for them I sanctify Myself.” The hymn’s later verse — “yet she on earth hath union with God the Three in One” — is simply John 17:21 confessed: the church’s oneness is a share in the oneness of the Father, Son, and Spirit. It is the prayer of the High Priest, answered and sung back to Him.

Listen: