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1 John 3

ScriptureDepth's study of 1 John 3

“See how great a love the Father has given to us, that we should be called children of God! For this cause the world doesn’t know us, because it didn’t know him.”

1 John 3:1

John writes to believers about the Father's great love, establishing their identity as 'children of God', which explains their alienation from the world.

What 1 John 3 is about

The Father has given great love, allowing believers to be called children of God (vv. 1-2). Knowing they are children of God, those with this hope strive for purity (vv. 3-6). Righteousness is evidence of being in relationship with God. Those who do righteousness are righteous, while those who sin are of the devil (vv. 7-10). The command is to love one another, contrasting Cain, who killed Abel out of evil (vv. 11-15). Believers know they have passed from death to life by their love for others (vv. 14-15). Love should be shown through actions, not just words (vv. 16-18). Assurance before God comes from believing and obeying (vv. 19-22). The command is to believe in Jesus and love one another as commanded (vv. 23-24). Those who keep God's commandments remain in Him, and He gives them His Spirit (vv. 24).

The command remains that believers should believe in Jesus and love one another as He commanded.

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1 John 3 at a glance

  1. 1 John 3:1–2The Father's Love for Us
  2. 1 John 3:3–6Purity and Sinlessness
  3. 1 John 3:7–10Righteousness as Evidence
  4. 1 John 3:11–15The Command to Love
  5. 1 John 3:16–18Demonstrating Christ-like Love
  6. 1 John 3:19–22Assurance Before God
  7. 1 John 3:23–24Commandments of Belief and Love

Key verse: 1 John 3:1

Summary and study helps: AI-drafted (September 2026), checked by automated Scripture gates. Spotted an error? Report it. Fixes are listed on the corrections page.

Chapter text

Read 1 John 3 (WEB)

The Father's Love for Us 1 John 3:1–2

Verse 1. See how great a love the Father has given to us, that we should be called children of God! For this cause the world doesn’t know us, because it didn’t know him. Verse 2. Beloved, now we are children of God, and it is not yet revealed what we will be. But we know that, when he is revealed, we will be like him; for we will see him just as he is.

Purity and Sinlessness 1 John 3:3–6

Verse 3. Everyone who has this hope set on him purifies himself, even as he is pure. Verse 4. Everyone who sins also commits lawlessness. Sin is lawlessness. Verse 5. You know that he was revealed to take away our sins, and in him is no sin. Verse 6. Whoever remains in him doesn’t sin. Whoever sins hasn’t seen him and doesn’t know him.

Righteousness as Evidence 1 John 3:7–10

Verse 7. Little children, let no one lead you astray. He who does righteousness is righteous, even as he is righteous. Verse 8. He who sins is of the devil, for the devil has been sinning from the beginning. To this end the Son of God was revealed: that he might destroy the works of the devil. Verse 9. Whoever is born of God doesn’t commit sin, because his seed remains in him; and he can’t sin, because he is born of God. Verse 10. In this the children of God are revealed, and the children of the devil. Whoever doesn’t do righteousness is not of God, neither is he who doesn’t love his brother.

The Command to Love 1 John 3:11–15

Verse 11. For this is the message which you heard from the beginning, that we should love one another; Verse 12. unlike Cain, who was of the evil one, and killed his brother. Why did he kill him? Because his deeds were evil, and his brother’s righteous. Verse 13. Don’t be surprised, my brothers, if the world hates you. Verse 14. We know that we have passed out of death into life, because we love the brothers. He who doesn’t love his brother remains in death. Verse 15. Whoever hates his brother is a murderer, and you know that no murderer has eternal life remaining in him.

Demonstrating Christ-like Love 1 John 3:16–18

Verse 16. By this we know love, because he laid down his life for us. And we ought to lay down our lives for the brothers. Verse 17. But whoever has the world’s goods, and sees his brother in need, and closes his heart of compassion against him, how does God’s love remain in him? Verse 18. My little children, let’s not love in word only, or with the tongue only, but in deed and truth.

Assurance Before God 1 John 3:19–22

Verse 19. And by this we know that we are of the truth, and persuade our hearts before him, Verse 20. because if our heart condemns us, God is greater than our heart, and knows all things. Verse 21. Beloved, if our hearts don’t condemn us, we have boldness toward God; Verse 22. and whatever we ask, we receive from him, because we keep his commandments and do the things that are pleasing in his sight.

Commandments of Belief and Love 1 John 3:23–24

Verse 23. This is his commandment, that we should believe in the name of his Son, Jesus Christ, and love one another, even as he commanded. Verse 24. He who keeps his commandments remains in him, and he in him. By this we know that he remains in us, by the Spirit which he gave us.

World English Bible (public domain)

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Main themes in 1 John 3

God's love

In verses 1-2, the text expresses the greatness of the Father's love, stating that we should be called 'children of God.' This love is foundational, as it explains why 'the world doesn’t know us.' The chapter moves forward by establishing that this identity as God's children brings hope and a future resemblance to Christ when he is revealed.

Righteous living

Verses 3-10 focus on the connection between righteousness and being a child of God. The text asserts that everyone who has hope in Christ 'purifies himself, even as he is pure' (v. 3). The distinction between righteousness and sin is made clear, with the statement that 'whoever doesn’t do righteousness is not of God' (v. 10), reinforcing the call to live righteously.

Christ-like love

In verses 16-18, the chapter discusses Christ-like love by stating that 'he laid down his life for us,' which serves as a model for how we ought to love one another. The text challenges readers to demonstrate this love in practical ways, not just through words. The call to act with compassion is emphasized, urging believers to show love through 'deed and truth' (v. 18).

Children of God

Verses 1-2 and 9 articulate the identity of believers as 'children of God.' This status establishes a standard for behavior, as those born of God do not commit sin because 'his seed remains in him' (v. 9). The text creates a clear distinction between the children of God and those who belong to the devil, emphasizing the moral implications of this identity.

Chapter outline

How 1 John 3 unfolds

  1. 1 John 3:1–2 The Father's Love for Us

    The Father’s great love allows us to be called 'children of God' (v. 1), which results in the world not knowing us because it did not know Him. We know that we will be like Him when He is revealed (v. 2).

  2. 1 John 3:3–6 Purity and Sinlessness

    Those with hope in Christ purify themselves, paralleling His purity (v. 3). Sin is defined as lawlessness (v. 4), and knowing Him means not continuing in sin (v. 6).

  3. 1 John 3:7–10 Righteousness as Evidence

    A warning is given against deception (v. 7), stating that the one who practices righteousness is righteous, while the one who sins belongs to the devil (v. 8), emphasizing the contrast between children of God and children of the devil (v. 10).

  4. 1 John 3:11–15 The Command to Love

    The command to love one another is reiterated (v. 11), with a reference to Cain's violent act against his brother due to evil deeds (vv. 12-13), illustrating the consequences of hatred.

  5. 1 John 3:16–18 Demonstrating Christ-like Love

    The nature of true love is exemplified by Christ’s sacrificial act (v. 16), and the call is made to act with compassion towards others, not merely in words (v. 18).

  6. 1 John 3:19–22 Assurance Before God

    Assurance before God is predicated on the condition of our hearts (vv. 19-20), allowing for confidence in prayer when one’s heart does not condemn them (v. 21).

  7. 1 John 3:23–24 Commandments of Belief and Love

    The commandment given is to 'believe in the name of his Son, Jesus Christ, and love one another' (v. 23). Keeping these commandments allows us to remain in Him, confirmed by the Spirit (v. 24).

Key verses

  • 1 John 3:1John writes to believers about the Father's great love, establishing their identity as 'children of God', which explains their alienation from the world.

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Study questions

Questions for studying 1 John 3

SummarizeObserveInterpretApply

Uses your daily Ask questions.

  1. observeIn v1, what does John say we should be 'called', and why does the world not know us?
  2. observeWhy does John bring up Cain in v12, and what does he say Cain's deeds were?
  3. interpretJohn says in v9 that whoever is 'born of God' cannot sin, yet v20 allows that 'our heart condemns us': how do these fit together?
  4. interpretIn v16, 'he laid down his life for us' becomes 'we ought to lay down our lives': what would that cost you?
  5. applyWho near you is 'in need' this week, and what would it mean not to close your heart against him?

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1 John 3: frequently asked questions

What is 1 John 3 about?+
The Father has given great love, allowing believers to be called children of God (vv. 1-2).
What is the key verse in 1 John 3?+
1 John 3:1: “See how great a love the Father has given to us, that we should be called children of God! For this cause the world doesn’t know us, because it didn’t know him.”
What are the main themes of 1 John 3?+
The main themes of 1 John 3 are God's love, Righteous living, Christ-like love, Children of God.

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Study Notes