A New Commandment — Love One Another 'now is the Son of Man glorified' · 'a new commandment I give you' · the mark of discipleship · Peter's denial foretold
With the betrayer gone out into the night, the passion is set in motion — and Jesus' first word is not lament but glory: "Now is the Son of Man glorified, and God is glorified in him." Then, addressing his disciples as "little children," he tells them he is going where they cannot yet follow, and leaves them a new commandment: love one another as he has loved them. Such love, he says, is the badge by which the watching world will know them as his disciples. Peter protests his readiness to die — and Jesus answers with the hard mercy of a foretold denial, and the quiet promise that Peter will follow afterward.
Greek Text (SBLGNT)
The Greek text below is the Society of Biblical Literature Greek New Testament (SBLGNT), edited by Michael W. Holmes — © 2010 SBL and Logos, released CC BY 4.0. The paragraph turns on the departure of Judas (v. 30): the moment he is gone, the language of glorification begins.
Working Translation
An original literal rendering, not borrowed from any copyrighted translation. Brackets mark phrases added for English clarity.
Note on vv. 31–32: the verbs of "glorify" are aorist (ἐδοξάσθη) and future (δοξάσει); the aorists are best read as proleptic — the cross, though still future on the clock, is so certain that it is spoken of as already accomplished. Note on v. 33: τεκνία ("little children") is an affectionate diminutive, found on Jesus' lips only here in the Gospels. Note on vv. 37–38: τὴν ψυχήν … θήσω/θήσεις ("to lay down [one's] life / soul") deliberately echoes the Good Shepherd of 10:11.
Passage Structure
These eight verses open the Farewell Discourse. With Judas gone (v. 30), the cross is no longer held off; Jesus speaks of it at once as glory, gives the new commandment, and turns to deal tenderly but truthfully with Peter. The paragraph falls into three movements:
- vv. 31–32 — The hour of glorification. The departure of the betrayer triggers the announcement: "Now was the Son of Man glorified." Five times in two verses the verb δοξάζω ("glorify") rings out, weaving Son and God together: the Son is glorified, God is glorified in him, and God will in turn glorify the Son in himself. The cross is the glory.
- vv. 33–35 — The new commandment. Addressing them as τεκνία ("little children"), Jesus announces his departure to a place they cannot yet follow, then gives the "new commandment" (ἐντολὴν καινήν): to love one another as he has loved them. This love is the mark by which all will recognize his disciples.
- vv. 36–38 — Peter's boast and the foretold denial. Peter fastens on "where are you going?" and protests that he will lay down his life. Jesus gently corrects the order — "you will follow afterward" — and then names the painful truth: before the rooster crows, Peter will deny him three times.
The hinge-word of the opening is νῦν ("now," v. 31): the long-anticipated "hour" has arrived, and the aorists ἐδοξάσθη speak of the cross as already glory. The same paragraph holds together exalted theology (the mutual glorifying of Father and Son) and intimate pastoral care (τεκνία, and the patient handling of Peter). Note the verbal echoes that bind the passage to the wider Gospel: δοξάζω looks ahead to 17:1–5; ὑπάγω ("I am going") to 14:1–4; τὴν ψυχήν θήσω back to 10:11; and "you will follow afterward" forward to the restoration and martyrdom of 21:18–19.
Verse-by-Verse Notes
John 13:31 — Ὅτε οὖν ἐξῆλθεν λέγει Ἰησοῦς· Νῦν ἐδοξάσθη ὁ υἱὸς τοῦ ἀνθρώπου…
Ὅτε οὖν ἐξῆλθεν ("when therefore he had gone out"). The unnamed subject is Judas, who in v. 30 "went out, and it was night." The οὖν ("therefore") is consequential: the going-out of the betrayer is the trigger. With the wheels of the betrayal now turning, the cross is set, and Jesus speaks of what is about to happen as if it were the dawning of glory. The departure into darkness is, paradoxically, the threshold of light.
Νῦν ἐδοξάσθη ὁ υἱὸς τοῦ ἀνθρώπου ("now was the Son of Man glorified"). The emphatic νῦν ("now") marks the arrival of the long-awaited "hour" (cf. 2:4; 7:30; 12:23). The verb ἐδοξάσθη is aorist passive of δοξάζω ("to glorify"), and the tense is striking: the glorification is spoken of as already accomplished, though the cross is still hours away. This is best read as a proleptic (anticipatory) aorist — the event is so certain, and so bound up with the decisive turn just taken, that it is announced as done. The title ὁ υἱὸς τοῦ ἀνθρώπου ("the Son of Man") is the very title John attaches to Jesus' being "lifted up" (3:14; 8:28; 12:23, 34); here the lifting up onto the cross is named as the moment of glory. In John's theology the cross is not the eclipse of Jesus' glory but its supreme manifestation.
καὶ ὁ θεὸς ἐδοξάσθη ἐν αὐτῷ ("and God was glorified in him"). The glorification is mutual and reciprocal. In the obedience of the Son unto death, God himself — his love, justice, faithfulness, and saving power — is put on display. The cross glorifies the Son and glorifies God "in him." This anticipates the great prayer of 17:1, "Father… glorify your Son that the Son may glorify you," and 17:4, "I glorified you on the earth, having finished the work you gave me to do."
John 13:32 — εἰ ὁ θεὸς ἐδοξάσθη ἐν αὐτῷ, καὶ ὁ θεὸς δοξάσει αὐτὸν ἐν αὑτῷ, καὶ εὐθὺς δοξάσει αὐτόν.
εἰ ὁ θεὸς ἐδοξάσθη ἐν αὐτῷ ("if God was glorified in him"). The εἰ ("if") is not a doubting condition but a logical premise assumed true — "since/given that God was glorified in him." Verse 32 draws out the consequence of v. 31: because the cross glorifies God in the Son, God will respond by glorifying the Son.
καὶ ὁ θεὸς δοξάσει αὐτὸν ἐν αὑτῷ ("God also will glorify him in himself"). The verb now shifts to the future δοξάσει ("will glorify"). The reflexive ἐν αὑτῷ ("in himself," the rough-breathing form distinguishing it from the simple αὐτῷ, "in him") points to the Father glorifying the Son in the Father's own presence — the glory the Son had with the Father before the world existed, now restored and displayed in the resurrection and ascension (cf. 17:5). The mutual glorifying of Father and Son moves from cross to exaltation.
καὶ εὐθὺς δοξάσει αὐτόν ("and will glorify him at once"). The adverb εὐθύς ("immediately, at once") underscores that the glorification will not be long delayed; cross, resurrection, and exaltation belong together as a single, swiftly-unfolding movement. The dense fivefold repetition of δοξάζω across vv. 31–32 makes glory the dominant note struck at the threshold of the passion. Christology draws out how the cross-and-exaltation together reveal the glory of the incarnate Son.
John 13:33 — τεκνία, ἔτι μικρὸν μεθ’ ὑμῶν εἰμι· ζητήσετέ με… Ὅπου ἐγὼ ὑπάγω ὑμεῖς οὐ δύνασθε ἐλθεῖν…
τεκνία ("little children"). This affectionate diminutive of τέκνον ("child") appears on Jesus' lips only here in the four Gospels. (It becomes a favorite address in 1 John, where the elderly apostle calls his readers "my little children" again and again.) The tone is tender and pastoral: on the eve of his death Jesus speaks to his disciples not as a stern master but as a father gathering his small children for a parting word. The whole hard message that follows — departure, a commandment, a foretold failure — is wrapped in this affection.
ἔτι μικρὸν μεθ’ ὑμῶν εἰμι ("yet a little [while] I am with you"). μικρόν ("a little, a short while") marks the brevity of the time remaining; the theme of the "little while" runs through the discourse (cf. 14:19; 16:16–19). The present εἰμι ("I am") underlines that the separation is imminent.
ζητήσετέ με… Ὅπου ἐγὼ ὑπάγω ὑμεῖς οὐ δύνασθε ἐλθεῖν ("you will seek me… where I am going you cannot come"). Jesus repeats to the disciples what he had earlier said to "the Jews" (7:34; 8:21), but now with a crucial difference in destiny: the unbelievers cannot come because of their unbelief, but the disciples cannot come yet — the "now" of v. 36 (νῦν) and the "afterward" (ὕστερον) leave the door open. ὑπάγω ("I am going / withdraw") is John's quiet verb for Jesus' return to the Father through death (cf. 14:4, 28; 16:5, 10); it sets up the question Peter and Thomas will press (vv. 36; 14:5).
John 13:34 — ἐντολὴν καινὴν δίδωμι ὑμῖν ἵνα ἀγαπᾶτε ἀλλήλους, καθὼς ἠγάπησα ὑμᾶς…
ἐντολὴν καινήν ("a new commandment"). ἐντολή is "commandment, charge"; καινή is "new" — and not νέα ("new" in time, recent) but καινή ("new" in quality, fresh, of a new kind). In what sense is the command to love "new"? Not new in that love was unknown before — "you shall love your neighbor as yourself" stands already in the law (Lev 19:18, in transliteration the Hebrew we-ahavta le-reakha kamokha). The newness lies elsewhere: (1) in its measure and model — καθὼς ἠγάπησα ὑμᾶς, "as I have loved you," a love measured by the self-giving of the cross, which has just been enacted in the foot-washing (13:1–17) and will be consummated at Calvary; and (2) in its place as the defining mark of the new-covenant community being formed around the crucified and risen Lord. The old command is taken up, deepened to the cross-measure, and set at the heart of the new people of God.
ἵνα ἀγαπᾶτε ἀλλήλους ("that you love one another"). The ἵνα here introduces the content of the commandment rather than mere purpose. The verb ἀγαπάω (present subjunctive, "keep on loving") denotes self-giving love directed to the good of the other — the love that defines God's own action (3:16). The reciprocal pronoun ἀλλήλους ("one another") fixes the immediate sphere: love among the disciples, within the believing community. (This is the first focus, not the whole of Christian love; cf. the misreadings below.)
καθὼς ἠγάπησα ὑμᾶς ("just as I loved you"). The καθώς ("just as, in the same manner as") is both the standard and the ground of the new love. The aorist ἠγάπησα ("I loved") looks to the whole of Jesus' love for his own — supremely the cross now beginning, where he will lay down his life (15:13). Christian love is not first a feeling we generate but a participation in and reflection of the love we have received from him. See Soteriology on the love of God in Christ as the source of all Christian love.
John 13:35 — ἐν τούτῳ γνώσονται πάντες ὅτι ἐμοὶ μαθηταί ἐστε, ἐὰν ἀγάπην ἔχητε ἐν ἀλλήλοις.
ἐν τούτῳ γνώσονται πάντες ("by this all [people] will know"). ἐν τούτῳ ("in/by this") points forward to the condition that follows. γνώσονται (future of γινώσκω, "will know, recognize") with the all-embracing πάντες ("all, everyone") sets the disciples' love before a watching world. The badge of authentic discipleship is not miraculous power, not doctrinal slogans alone, but visible, mutual, self-giving love.
ὅτι ἐμοὶ μαθηταί ἐστε ("that you are my disciples"). The emphatic ἐμοί ("mine") fronts the relationship: disciples belonging to me, Jesus. Love among believers is the public, recognizable token that they belong to Christ. The world's verdict — "see how they love one another" — is meant to point beyond the disciples to the Lord whose love they reflect.
ἐὰν ἀγάπην ἔχητε ἐν ἀλλήλοις ("if you have love among one another"). The ἐάν ("if") with the present subjunctive ἔχητε ("you keep having") makes the recognition conditional on ongoing, habitual love, not a single act. ἐν ἀλλήλοις ("among one another") again locates this love within the community. The mark is corporate and visible: a fellowship marked by love is the living evidence of Jesus' lordship.
John 13:36 — Λέγει αὐτῷ Σίμων Πέτρος· Κύριε, ποῦ ὑπάγεις;… Ὅπου ὑπάγω οὐ δύνασαί μοι νῦν ἀκολουθῆσαι, ἀκολουθήσεις δὲ ὕστερον.
Κύριε, ποῦ ὑπάγεις; ("Lord, where are you going?"). Peter, characteristically, fastens not on the new commandment but on the puzzling word about Jesus' departure (v. 33). ποῦ ὑπάγεις ("where are you going?") is the question that drives the early discourse and is taken up by Thomas (14:5) and answered as Jesus reveals the Father's house and "the way" (14:2–6).
οὐ δύνασαί μοι νῦν ἀκολουθῆσαι ("you cannot follow me now"). ἀκολουθέω ("to follow") is the classic verb of discipleship, but here it carries a deeper, costly sense: to follow Jesus where he is going is to follow him through death. The emphatic νῦν ("now") is the key word: Peter cannot follow now — he is not yet ready, and the way of the cross is Jesus' alone to walk first. The aorist infinitive ἀκολουθῆσαι points to the decisive act of following him in death.
ἀκολουθήσεις δὲ ὕστερον ("but you will follow afterward"). The δέ ("but") sets a gentle contrast, and ὕστερον ("later, afterward") opens a door of hope that the rest of the conversation might seem to close. This is grace tucked into a hard saying: Peter will follow — pointing ahead to his restoration and, ultimately, his martyrdom for Christ (21:18–19, "by what kind of death he would glorify God"). The denial is not the last word over Peter.
John 13:37 — λέγει αὐτῷ ὁ Πέτρος· Κύριε, διὰ τί οὐ δύναμαί σοι ἀκολουθῆσαι ἄρτι; τὴν ψυχήν μου ὑπὲρ σοῦ θήσω.
διὰ τί οὐ δύναμαί σοι ἀκολουθῆσαι ἄρτι; ("why can I not follow you now?"). Peter presses the point, substituting ἄρτι ("right now, this moment") for Jesus' νῦν. His self-confidence will not accept a delay; he believes himself ready for the very thing Jesus says he cannot yet do.
τὴν ψυχήν μου ὑπὲρ σοῦ θήσω ("my life I will lay down for you"). The wording is loaded with irony. τὴν ψυχήν … θήσω ("to lay down [one's] life/soul") is the exact phrase of the Good Shepherd, who "lays down his life (τὴν ψυχὴν αὐτοῦ τίθησιν) for the sheep" (10:11, 15), and the preposition ὑπέρ ("on behalf of, for") is the language of substitutionary, sacrificial death. Peter unwittingly claims for himself the Shepherd's own role — to die for another. But the disciple cannot do what only the Shepherd can; the laying-down of life that saves is Christ's alone, and Peter is about to discover how far his courage falls short of his words. Christology and Soteriology together explain why the saving death belongs to Christ alone.
John 13:38 — ἀποκρίνεται Ἰησοῦς· Τὴν ψυχήν σου ὑπὲρ ἐμοῦ θήσεις; ἀμὴν ἀμὴν λέγω σοι, οὐ μὴ ἀλέκτωρ φωνήσῃ ἕως οὗ ἀρνήσῃ με τρίς.
Τὴν ψυχήν σου ὑπὲρ ἐμοῦ θήσεις; ("your life you will lay down for me?"). Jesus throws Peter's own words back as a question, reversing the pronouns: your life, for me? The gentle incredulity exposes the gap between Peter's boast and the truth Jesus knows. There is no harshness here, only the searching clarity of one who knows the human heart (cf. 2:25).
ἀμὴν ἀμὴν λέγω σοι ("truly, truly I say to you"). The doubled ἀμήν (a Hebrew word here transliterated into Greek, John's solemn formula, occurring twenty-five times in the Gospel) introduces a weighty and certain pronouncement. What follows is no guess but a sure word of prophecy.
οὐ μὴ ἀλέκτωρ φωνήσῃ ἕως οὗ ἀρνήσῃ με τρίς ("a rooster will surely not crow until you deny me three times"). The double negative οὐ μή with the aorist subjunctive φωνήσῃ ("crow") is the strongest form of denial in Greek — "by no means will a rooster crow…" — and serves here to fix the timing with certainty. ἀλέκτωρ is "rooster, cock"; ἕως οὗ means "until"; and ἀρνήσῃ … τρίς ("you will deny… three times") names the threefold denial recorded in all four Gospels (cf. 18:17, 25–27). The verb ἀρνέομαι ("to deny, disown") is the stark opposite of Peter's confident θήσω ("I will lay down"). Yet even this devastating word stands under the "afterward" of v. 36: the foreknowing Lord who names the fall is the same Lord who has prayed for Peter and will restore him (cf. Luke 22:31–32; John 21:15–19).
Key Greek Words and Phrases
| Greek | Translit. | Meaning | In context |
|---|---|---|---|
| ἐδοξάσθη | edoxasthē | "was glorified" (aorist passive of δοξάζω) | vv. 31–32 — proleptic aorist; the cross, though future, is spoken of as already the moment of glory |
| δοξάσει | doxasei | "will glorify" (future of δοξάζω) | v. 32 — the Father will glorify the Son "in himself" and "at once," moving from cross to exaltation |
| ὁ υἱὸς τοῦ ἀνθρώπου | ho huios tou anthrōpou | "the Son of Man" | v. 31 — John's title for the one "lifted up"; the cross is the Son of Man's glorification |
| νῦν | nyn | "now" | v. 31 — the long-awaited "hour" has arrived with the departure of Judas |
| τεκνία | teknia | "little children" (affectionate diminutive) | v. 33 — Jesus' only use of this tender address in the Gospels (cf. 1 John) |
| ὑπάγω | hypagō | "I go away, withdraw" | vv. 33, 36 — John's quiet verb for Jesus' return to the Father through death |
| ἐντολὴ καινή | entolē kainē | "a new commandment" (καινή = new in kind/quality) | v. 34 — not new in being unknown (Lev 19:18), but new in measure ("as I loved you") and as the church's mark |
| ἀγαπάω / ἀγάπη | agapaō / agapē | "to love / love" (self-giving love) | vv. 34–35 — the cross-shaped, self-giving love that defines the disciples toward "one another" |
| καθὼς ἠγάπησα ὑμᾶς | kathōs ēgapēsa hymas | "just as I loved you" | v. 34 — Christ's own self-giving (the cross) is both the standard and the ground of the new love |
| τὴν ψυχήν … θήσω | tēn psychēn … thēsō | "I will lay down [my] life/soul" | v. 37 — Peter's boast echoes the Good Shepherd (10:11); but the saving death is Christ's alone |
| ἀρνέομαι (ἀρνήσῃ) | arneomai (arnēsē) | "to deny, disown" | v. 38 — the threefold denial foretold; the opposite of Peter's confident "I will lay down" |
| ἀμὴν ἀμήν | amēn amēn | "truly, truly" (transliterated Hebrew) | v. 38 — John's solemn double formula introducing a sure, weighty pronouncement |
Grammar and Syntax that Affect Interpretation
- The proleptic aorists ἐδοξάσθη — vv. 31–32. The "now was glorified" speaks of the still-future cross as already accomplished. This is not loose tense usage but theology: the hour is so certain, and the betrayal so decisively set in motion (v. 30), that the glorification is announced as done.
- The fivefold repetition of δοξάζω — vv. 31–32. Three aorist passives and two futures bind Son and God together in mutual glorification. The cluster makes glory — not shame — the keynote of the cross, and links the moment to the prayer of 17:1–5.
- The reflexive ἐν αὑτῷ ("in himself") vs. ἐν αὐτῷ ("in him") — v. 32. The rough breathing marks the reflexive: the Father glorifies the Son in the Father's own presence — the glory the Son had before the world existed (17:5), restored in resurrection and ascension.
- καινή, not νέα, for "new" — v. 34. The commandment is new in quality/kind, not merely recent in time. Its newness lies in the cross-measure ("as I loved you") and its role as the constituting mark of the new-covenant community, not in love's being previously unknown.
- The content-ἵνα after "I give you a commandment" — v. 34. The ἵνα introduces the substance of the command ("that you love one another"), not mere purpose. The commandment is the love.
- καθώς as standard and ground — v. 34. "Just as I loved you" is both the measure of the love commanded and its enabling source: disciples love because and as they have first been loved.
- The reciprocal ἀλλήλους / ἐν ἀλλήλοις ("one another / among one another") — vv. 34–35. The immediate sphere of the command is love within the believing community; this is its first focus and the basis of the world's recognition (v. 35), though not the whole of Christian love.
- The emphatic νῦν vs. ὕστερον — v. 36. "You cannot follow me now… but you will follow afterward." The temporal contrast carries the grace of the passage: the present incapacity is not permanent.
- The Good-Shepherd echo τὴν ψυχήν … θήσω — v. 37. Peter's verb and the preposition ὑπέρ ("for, on behalf of") deliberately reuse Jesus' own words in 10:11. The grammar itself stages the irony: Peter claims the Shepherd's role.
- The emphatic οὐ μή + aorist subjunctive — v. 38. The strongest negation in Greek ("by no means will a rooster crow…") fixes the timing of the denial with prophetic certainty, set under the solemn double ἀμήν.
Theological Significance
The cross as glory. The most arresting note of the passage is that Jesus calls the threshold of his death "glory." With the betrayer gone and the machinery of crucifixion now turning, he says, "Now was the Son of Man glorified." In John's theology the cross is not the suspension of Jesus' glory but its supreme display: the "lifting up" on the cross is the lifting up into glory (3:14; 12:32–33). There the love and justice and saving power of God are unveiled as nowhere else, so that the Son is glorified and "God is glorified in him." The way down is the way up; the place of shame is the throne of glory.
The mutual glorification of Father and Son. The dense repetition of δοξάζω reveals the inner life of God turned outward in salvation: the Son glorifies the Father by his obedient self-offering, and the Father glorifies the Son "in himself" by raising and exalting him. This reciprocal glory, opened to view here, becomes the burden of the high-priestly prayer (17:1–5). The cross is not God against God but Father and Son together accomplishing one saving work.
Love as the model, measure, and mark. The "new commandment" sets Christ's own self-giving love as both the standard ("as I loved you") and the badge of his people. What makes it new is not that love was previously unknown — the law commanded neighbor-love — but that it is now measured by the cross and made the defining feature of the new-covenant community. The church's chief apologetic to a watching world is neither cleverness nor power but a fellowship visibly marked by self-giving love. "By this all will know that you are my disciples."
The foreknowing, keeping Lord and the failing disciple. Peter's boast and the foretold denial together teach two truths at once. First, human self-confidence — even the sincere, fervent kind — is no match for the trial of the cross; the disciple cannot, by his own resolve, do what only the Shepherd can. Second, the Lord who foreknows the fall is not defeated by it: "you will follow afterward" (v. 36) anchors Peter's future in grace, pointing to the restoration of chapter 21 and the perseverance that is finally God's gift, not Peter's nerve. The same hand that names the denial holds Peter through it. See Soteriology on the keeping of the saints by the grace of the one who foreknows their frailty.
Common Misreadings and Careful Corrections
- The "new commandment" abolishes the Old Testament love-command. It does not. Leviticus 19:18 already commanded neighbor-love; Jesus does not cancel it but deepens it to the cross-measure ("as I loved you") and sets it as the constituting mark of the new-covenant people. The newness is in quality (καινή) and role, not in love's being unheard-of before.
- "Love one another" makes Christian love exclusively inward-facing. The command's first and explicit focus is love among believers (ἀλλήλους), and that is its point here — the visible badge of discipleship before the world. But this is not a license for indifference to outsiders; the same Gospel grounds all love in God's love for the world (3:16), and the love within the community is precisely what the world is meant to see and be drawn by (v. 35).
- The "glory" of v. 31 refers only to the resurrection, not the cross. The proleptic aorist, spoken the moment Judas leaves to set the crucifixion in motion, and the Son-of-Man "lifting up" theme (3:14; 12:23, 32–33), make clear that the cross itself is the glorification — with the resurrection-exaltation (the futures of v. 32) following at once. Cross and exaltation are one movement of glory, not opposites.
- The "love" commanded is mere sentiment or feeling. ἀγάπη here is self-giving love modeled on Christ's laying-down of his life — concrete, costly, and oriented to the other's good (illustrated in the foot-washing of 13:1–17). It is not warm emotion alone but the cross-shaped service that emotion may or may not accompany.
- Peter's failure is the end of his discipleship. The denial is real and grievous, but it is not the last word. "You will follow afterward" (v. 36) and the restoration of chapter 21 (with the martyrdom that "glorifies God," 21:18–19) show that the foreknowing Lord keeps the one who falls. Peter's perseverance rests on Christ's grip, not Peter's grit.
- Reading Jesus' word to Peter as harsh or vindictive. The whole exchange is wrapped in the tender address τεκνία and the promise of v. 36. Jesus' question (v. 38, "your life for me?") is searching clarity, not cruelty; it gently exposes a boast that Peter must learn cannot stand on his own strength.
Cross-References
- John 12:23, 27–28 — "the hour has come that the Son of Man should be glorified"; the same Son-of-Man glorification announced here.
- John 3:14; 8:28; 12:32–33 — the Son of Man "lifted up"; the cross as the place of glory and the means of drawing all.
- John 17:1–5 — "Father… glorify your Son that the Son may glorify you"; the mutual glorification of vv. 31–32 unfolded in prayer.
- Leviticus 19:18 — "you shall love your neighbor as yourself" (transliterated we-ahavta le-reakha kamokha); the love-command the new commandment deepens, not replaces.
- John 15:12–13 — "love one another as I have loved you… greater love has no one than this, that he lay down his life for his friends"; the new commandment restated and explained.
- John 13:1–17 — the foot-washing; the enacted parable of the cross-shaped love commanded in vv. 34–35.
- John 10:11, 15 — the Good Shepherd "lays down his life for the sheep"; the words Peter unwittingly claims in v. 37.
- John 14:1–6 — "where I am going you know the way"; the disciples' question of "where are you going?" (v. 36) answered.
- John 21:15–19 — Peter's threefold restoration and his foretold martyrdom; the "you will follow afterward" of v. 36 fulfilled.
- Luke 22:31–34 — "Satan has demanded to have you… but I have prayed for you"; the keeping of Peter through the denial Jesus foretells.
- 1 John 3:16; 4:7–11 — "by this we know love, that he laid down his life for us"; love among believers grounded in Christ's self-giving.
Preaching / Teaching Summary
John 13:31–38 opens the Farewell Discourse, and it holds together the highest theology and the most tender pastoral care. Three lines preach.
First, the cross is glory. The moment the betrayer steps out into the night, Jesus does not say "now begins my disaster" but "now was the Son of Man glorified." In John's eyes the cross is not the eclipse of glory but its blazing center: there the love and faithfulness and saving power of God shine as nowhere else, so that the Son is glorified and God is glorified in him. We are tempted to look past the cross to find Jesus' glory — in miracles, in the empty tomb, in the throne. John makes us look straight at Calvary and call it glory. The way down is the way up.
Second, love is the badge. Wrapped in the affectionate address "little children," Jesus leaves his people a new commandment — new not because love was unknown, but because its measure is now the cross ("as I loved you") and its place is now the heart of the new community. And he stakes the church's witness on it: "by this all will know that you are my disciples." Not by argument alone, not by power, but by a fellowship visibly marked by self-giving love, the world is meant to see Christ. The question for any congregation is searching: would the watching world know us by our love?
Third, the Lord keeps the disciple who fails. Peter's boast — "I will lay down my life for you" — borrows the Good Shepherd's own words, and within hours it collapses into a threefold denial. Yet Jesus foretells the fall in the same breath that he promises, "you will follow afterward." The Lord who knows our hearts is not undone by our failures. The cross-following Peter could not manage by his own courage, grace would later give him — restored, recommissioned, and finally glorifying God in death. For every disciple whose resolve has shattered against reality, the gospel here is that the foreknowing Lord holds us still.
Memory and Review Questions
- Why does Jesus begin to speak of glory the moment Judas "had gone out" (v. 31)?
Because the departure of the betrayer sets the crucifixion irreversibly in motion. The οὖν ("therefore") is consequential: with the passion now beginning, Jesus announces the arrival of the long-awaited "hour" of glorification. - In what sense is the cross the "glorification" of the Son of Man (v. 31)?
The aorist ἐδοξάσθη is proleptic — the still-future cross is spoken of as already accomplished glory. In John the "lifting up" of the Son of Man on the cross (3:14; 12:32–33) is the supreme display of God's glory, not its eclipse. - What does the fivefold repetition of δοξάζω in vv. 31–32 emphasize?
The mutual glorification of Father and Son: the Son is glorified, God is glorified in him, and God will in turn glorify the Son "in himself" and "at once." Cross and exaltation form one movement of glory (cf. 17:1–5). - What is significant about the address τεκνία ("little children," v. 33)?
It is an affectionate diminutive used by Jesus only here in the Gospels (a favorite later in 1 John). It signals tender, fatherly pastoral care wrapping the hard sayings about his departure, the commandment, and Peter's failure. - In what sense is the commandment to love "new" (v. 34), and in what sense is it not?
It is not new in that love was unknown — Leviticus 19:18 already commanded neighbor-love. It is new (καινή, new in kind) in its measure and model ("as I loved you," = the self-giving of the cross) and in its place as the defining mark of the new-covenant community. - Why is "as I loved you" (καθὼς ἠγάπησα ὑμᾶς) so central to the command?
It is both the standard and the ground of the love commanded: the cross is the measure of how disciples are to love, and Christ's prior love is the source that enables it. Christian love is a reflection of love received. - According to v. 35, how does the world recognize Jesus' disciples?
By their visible, mutual, self-giving love: "by this all will know that you are my disciples, if you have love among one another." Love within the community is the public badge of authentic discipleship. - What is the irony in Peter's words, "my life I will lay down for you" (v. 37)?
He unwittingly uses the Good Shepherd's own phrase (τὴν ψυχήν … θήσω, cf. 10:11) and the language of sacrificial death (ὑπέρ). But the saving laying-down of life belongs to Christ alone; the disciple cannot do what only the Shepherd can. - What does Jesus foretell in v. 38, and how is the grammar emphatic?
That Peter will deny him three times before a rooster crows. The double negative οὐ μή with the aorist subjunctive is the strongest Greek denial ("by no means will a rooster crow…"), set under the solemn double ἀμήν — a sure prophecy, not a guess. - How does "you will follow afterward" (v. 36) qualify the foretold denial?
It opens a door of grace: Peter's present incapacity (νῦν) is not permanent. The word points ahead to his restoration and martyrdom (21:18–19); the foreknowing Lord keeps the disciple who falls. - Why is it wrong to read v. 17-style "Moses-versus-grace" dualism — or here, a cross-versus-resurrection split — into the "glory" language?
The cross itself is named the glorification (the proleptic aorists, the Son-of-Man "lifting up"), with the resurrection-exaltation (the futures of v. 32) following "at once." Cross and exaltation are one unified movement of glory, not opposites. - What two truths do Peter's boast and the foretold denial teach together?
First, sincere human self-confidence is no match for the trial of the cross — the disciple cannot save himself by his own resolve. Second, the Lord who foreknows the fall is not defeated by it; he keeps and restores his own ("you will follow afterward," ch. 21).