First John 3 opens with an astonished declaration of God's love in calling believers his children, then develops the incompatibility of habitual sin with divine parentage. John draws a sharp line between the children of God and the children of the devil, using Cain as the paradigmatic example of hatred. The central ethical demand is love expressed in concrete action — not merely in words but in laying down one's life for others, as Christ did. The chapter closes with the assurance that God is greater than our self-condemning hearts, and that obedience and faith produce confidence before God and the indwelling of the Spirit.
What Makes This Chapter Remarkable
The phrase 'what we will be has not yet appeared' (v. 2) is one of the New Testament's most striking admissions of eschatological incompleteness — the full transformation of believers awaits Christ's return. The definition of sin as anomia ('lawlessness,' v. 4) is theologically significant: sin is not merely moral failure but rebellion against God's ordering of reality. The Cain reference (v. 12) is the only New Testament use of Cain outside Hebrews 11:4 and Jude 11, and John uniquely attributes his murder to spiritual allegiance to the evil one.
Translation Friction
Verse 6 ('no one who remains in him keeps on sinning') and verse 9 ('no one born of God practices sin') have generated extensive debate. The present tenses in Greek indicate habitual, characteristic action — John is describing a pattern of life, not claiming sinless perfection (which would contradict 1:8-10 and 2:1). The tension between the ideal stated here and the realistic acknowledgment of sin earlier in the letter is deliberate, reflecting the 'already but not yet' of Christian existence.
Connections
The children-of-God theme connects to John 1:12-13 and Romans 8:14-17. The Cain narrative draws from Genesis 4. The command to love one another echoes John 13:34-35. The laying-down-of-life language directly mirrors John 10:11, 15 and 15:13. The confidence-before-God theme anticipates the boldness language of Hebrews 4:16 and 10:19-22.
See what kind of love the Father has given to us, that we should be called children of God — and so we are! The reason the world does not know us is that it did not know him.
KJV Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.
Notes & Key Terms
1 term
Key Terms
τέκνα θεοῦtekna theou
"children of God"—children of God, God's offspring
The word tekna ('children') emphasizes origin and birth-relationship rather than legal standing. John consistently uses tekna rather than huioi ('sons') for believers, reserving huios for Jesus alone in his writings.
Translator Notes
The Greek potapēn ('what kind of, what manner of') expresses astonishment — this is not merely great love but a foreign, unexpected quality of love. The phrase kai esmen ('and we are') is a parenthetical exclamation affirming that the title 'children of God' is not honorific but real. We render tekna ('children') rather than the KJV's 'sons' because the Greek tekna is gender-inclusive and emphasizes birth-relationship, while huioi ('sons') would emphasize legal status.
Beloved, we are now children of God, and what we will be has not yet been revealed. We know that when he appears, we will be like him, because we will see him as he is.
KJV Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
Notes & Key Terms
Translator Notes
The tension between 'now' (nyn) and 'not yet' (oupō) captures the eschatological position of believers — genuine identity now, full transformation later. The promise 'we will be like him' (homoioi autō esometha) is stunning in its scope and deliberately left undefined. The causal clause 'because we will see him as he is' suggests that the vision of Christ itself will be transformative — seeing and becoming are linked.
And everyone who has this hope fixed on him purifies himself, just as he is pure.
KJV And every man that hath this hope in him purifieth himself, even as he is pure.
Notes & Key Terms
Translator Notes
The verb hagnizei ('purifies') is the same word used for ceremonial purification in the Septuagint (e.g., Numbers 19). The eschatological hope of transformation produces present ethical effort. The standard is nothing less than Christ's own purity (hagnos).
[TCR Cross-Reference] References Numbers 19 — the TCR OT rendering of that text provides the Hebrew source and explains the translation decisions involved.
Everyone who practices sin also practices lawlessness, and sin is lawlessness.
KJV Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
Notes & Key Terms
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Key Terms
ἀνομίαanomia
"lawlessness"—lawlessness, transgression, iniquity, rebellion against law
The word means literally 'without law' (a-nomia). It describes not ignorance of law but willful rejection of divine order. The KJV's 'transgression of the law' narrows the meaning; 'lawlessness' better captures the broader sense of active rebellion.
Translator Notes
The Greek anomia ('lawlessness') is not merely 'breaking a rule' but rebellion against God's ordering of reality. The equation 'sin is lawlessness' (hē hamartia estin hē anomia) defines sin in its deepest sense — not as individual infractions but as a fundamental posture of defiance against divine authority. The present participle poiōn ('practicing, doing') indicates habitual action.
And you know that he appeared in order to take away sins, and in him there is no sin.
KJV And ye know that he was manifested to take away our sins; and in him is no sin.
Notes & Key Terms
Translator Notes
The verb ephanerōthē ('was manifested, appeared') refers to Christ's incarnation. The verb arē ('take away, remove, bear') echoes John the Baptist's declaration in John 1:29 ('the Lamb of God who takes away the sin of the world'). Christ's sinlessness is the ground of his ability to remove sin — only one without sin can bear and remove the sin of others.
No one who remains in him keeps on sinning. No one who keeps on sinning has seen him or known him.
KJV Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.
Notes & Key Terms
Translator Notes
The present tenses (menōn, hamartanei, hamartanōn) are crucial: John is describing habitual, ongoing action. 'No one who remains in him keeps on sinning' does not assert sinless perfection but rather that abiding in Christ and a settled pattern of sin are incompatible. This must be read alongside 1:8-2:2, where John acknowledges that believers do sin and need an advocate. The distinction is between occasional failure and characteristic lifestyle.
Little children, let no one deceive you. Whoever practices righteousness is righteous, just as he is righteous.
KJV Little children, let no man deceive you: he that doeth righteousness is righteous, even as he is righteous.
Notes & Key Terms
Translator Notes
The warning against deception (mēdeis planatō) suggests the secessionists may have taught that conduct does not reflect spiritual status. John insists on the opposite: practice reveals identity. The standard of comparison is Christ's own righteousness (kathōs ekeinos dikaios estin).
Whoever practices sin is of the devil, because the devil has been sinning from the beginning. The Son of God appeared for this purpose: to destroy the works of the devil.
KJV He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
Notes & Key Terms
Translator Notes
The phrase ek tou diabolou ('of the devil, from the devil') indicates origin and allegiance, just as 'born of God' indicates divine origin. The devil's sinning 'from the beginning' (ap' archēs) echoes the serpent narrative of Genesis 3 and Jesus's words in John 8:44. The verb lysē ('destroy, undo, dissolve') means literally 'to loose' — Christ unties, dismantles, and dissolves the devil's works.
[TCR Cross-Reference] References Genesis 3 — the TCR OT rendering of that text provides the Hebrew source and explains the translation decisions involved.
No one who has been born of God practices sin, because God's seed remains in that person, and he cannot keep on sinning, because he has been born of God.
KJV Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God.
Notes & Key Terms
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Key Terms
σπέρμαsperma
"seed"—seed, offspring, descendants, origin
The metaphor of divine seed remaining in the believer connects to the agricultural imagery of the parable of the sower and to the concept of divine begetting. It expresses the idea that God's own life has been implanted in those born of him.
Translator Notes
The word sperma ('seed') has been interpreted as God's word, the Holy Spirit, or the divine nature implanted in the believer. In context, it likely refers to the divine life-principle communicated through new birth. 'Cannot sin' (ou dynatai hamartanein) does not mean absolute impossibility but moral incompatibility — the new nature resists and is fundamentally opposed to habitual sin. The present infinitive hamartanein describes an ongoing pattern, not a single act.
By this it is evident who are the children of God and who are the children of the devil: whoever does not practice righteousness is not of God, nor is the one who does not love his brother.
KJV In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
Notes & Key Terms
Translator Notes
John establishes two tests by which spiritual parentage is revealed: practicing righteousness and loving fellow believers. The phrase 'children of the devil' (ta tekna tou diabolou) is stark — just as there are children of God by divine birth, there are children of the devil by spiritual allegiance. This dualistic framework serves pastoral urgency, not philosophical speculation.
That we should love one another, and for this was the message that you heard from the beginning.
KJV For this is the message that ye heard from the beginning, that we should love one another.
Notes & Key Terms
Translator Notes
The word angelia ('message') appears only here and in 1:5 in the New Testament. In 1:5 the message was 'God is light'; here it is the command of mutual love. These two messages — God's nature and the resulting ethical obligation — frame the letter's argument. 'From the beginning' (ap' archēs) again refers to the original proclamation of the gospel.
We should not be like Cain, who was of the evil one and murdered his brother. And why did he murder him? Because his own works were evil, and his brother's were righteous.
KJV Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.
Notes & Key Terms
Translator Notes
The verb esphaxen ('slaughtered, butchered') is a violent word often used for slaying sacrificial animals (it appears in Revelation for the slaughter of the Lamb, 5:6). John attributes Cain's act to his spiritual origin — he 'was of the evil one' (ek tou ponērou ēn). The rhetorical question and answer reveal that hatred of righteousness motivates murder. This interprets Genesis 4 through a spiritual-warfare lens.
[TCR Cross-Reference] Draws on Genesis 4. Consult the TCR rendering of that passage for the underlying Hebrew and the rationale for key translation choices.
Do not be surprised, brothers, if the world hates you.
KJV Marvel not, my brethren, if the world hate you.
Notes & Key Terms
Translator Notes
The imperative mē thaumazete ('do not be surprised, stop marveling') echoes Jesus's words in John 15:18-19. The world's hatred of believers follows the same pattern as Cain's hatred of Abel — the righteous provoke hostility simply by being righteous. The conditional ei ('if') with the indicative misei suggests this is a real condition: the world does hate them.
We know that we have passed out of death into life, because we love the brothers. Whoever does not love remains in death.
KJV We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.
Notes & Key Terms
Translator Notes
The perfect metabebēkamen ('we have passed') describes a completed transition with enduring results — believers have already crossed from the realm of death into the realm of life. Love for fellow believers is not the cause of this transition but the evidence of it. The stark alternative — remaining in death — is the default human condition apart from divine intervention.
Everyone who hates his brother is a murderer, and you know that no murderer has eternal life remaining in him.
KJV Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him.
Notes & Key Terms
Translator Notes
The Greek anthrōpoktonos ('murderer,' literally 'man-killer') is the same word used of the devil in John 8:44. John equates hatred with murder in its spiritual essence — the same move Jesus makes in the Sermon on the Mount (Matthew 5:21-22). The logic is relentless: hatred = murder, and no murderer possesses eternal life.
By this we have come to know love: that he laid down his life for us. And we ought to lay down our lives for the brothers.
KJV Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren.
Notes & Key Terms
Translator Notes
The phrase tēn psychēn autou ethēken ('he laid down his life') directly echoes Jesus's words in John 10:11, 15 and 15:13. The Greek psychē means 'life, soul, self.' Love is defined not by sentiment but by sacrifice. The obligation (opheilomen, 'we ought') extends the pattern of Christ's self-giving to all believers — this is the highest expression of the love command.
But if anyone has the world's possessions and sees his brother in need, yet closes his heart against him, how does the love of God remain in that person?
KJV But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him?
Notes & Key Terms
Translator Notes
The Greek splanchna ('inner organs, bowels, heart') was the seat of compassion in ancient thought, corresponding roughly to the modern 'heart.' The verb kleisē ('shuts, closes') is vivid — it pictures someone deliberately closing off the natural response of compassion. John moves from the grand principle (laying down one's life) to the mundane test (sharing material resources), suggesting that daily generosity is the realistic measure of love.
Little children, let us not love in word or in speech, but in action and in truth.
KJV My little children, let us not love in word, neither in tongue; but in deed and in truth.
Notes & Key Terms
Translator Notes
The contrast between logō and glōssē ('word' and 'tongue/speech') on one side, and ergō and alētheia ('deed/action' and 'truth') on the other, establishes that genuine love is demonstrated through concrete acts. 'In truth' (en alētheia) adds the dimension of sincerity — the actions must be genuine, not performative.
By this we will know that we are of the truth, and we will reassure our hearts before him,
KJV And hereby we know that we are of the truth, and shall assure our hearts before him.
Notes & Key Terms
Translator Notes
The verb peisomen ('we will persuade, reassure, set at rest') indicates the active process of calming a troubled conscience. Loving in deed and truth provides the believer with objective evidence of genuine faith, which in turn produces inner assurance before God.
Because if our heart condemn us, God is greater than our heart, and knows all things.
KJV For if our heart condemn us, God is greater than our heart, and knoweth all things.
Notes & Key Terms
Translator Notes
This is one of the most pastorally significant verses in the letter. The Greek kataginōskē ('condemns, accuses') describes the inner voice of self-accusation. The response is not to dismiss the heart's verdict but to appeal beyond it to God, who 'is greater' — his knowledge of our love and obedience is more comprehensive and more gracious than our own self-assessment. The verse offers comfort to the scrupulous, not license to the careless.
Beloved, if our heart does not condemn us, we have confidence before God,
KJV Beloved, if our heart condemn us not, then have we confidence toward God.
Notes & Key Terms
Translator Notes
The word parrēsian ('confidence, boldness, freedom of speech') reappears from 2:28. A clear conscience — not from self-deception but from genuine love in action — produces bold access to God. This confidence is not self-reliance but the fruit of a life aligned with God's commands.
Whatsoever we ask, we accept of him, on account of the fact that we keep his commandments, and do those things that are pleasing in his sight.
KJV And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.
Notes & Key Terms
Translator Notes
The connection between obedience and answered prayer echoes John 15:7 ('if you remain in me and my words remain in you, ask whatever you wish'). The logic is not transactional — obedience does not earn answers — but relational: the obedient life is aligned with God's will, so its requests are naturally in harmony with his purposes.
And this is his commandment: that we believe in the name of his Son Jesus Christ and love one another, just as he commanded us.
KJV And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
Notes & Key Terms
Translator Notes
John distills all of God's commands into two inseparable requirements: faith in Christ and mutual love. The singular 'commandment' (entolē) encompasses both, suggesting they cannot be separated — faith without love, or love without faith, is incomplete. The aorist pisteusōmen ('believe') may point to the decisive act of faith, while the present agapōmen ('love') indicates ongoing practice.
Whoever keeps his commandments remains in God, and God in that person. And by this we know that he remains in us: by the Spirit that he has given us.
KJV And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.
Notes & Key Terms
Translator Notes
The mutual indwelling formula — 'remains in God, and God in that person' — is the hallmark of Johannine theology (cf. John 15:4-5). The Spirit is introduced for the first time in the letter as the means by which believers know God's presence. This sets up the discussion of testing the spirits in chapter 4. The verb edōken ('has given') is aorist, pointing to the definitive gift of the Spirit.