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Apostle John’s Three Letters . . . 1 John 3:16–24

   The Church’s Hallmark of Love

What if the clearest evidence of our love for God isn’t found in what we say about him, but in what we do when someone needs us? A hungry neighbor, a closed hand, an uneasy conscience — each raises a question that religious words alone can’t answer. In 1 John 3:16–24, the cross becomes the measure of love, and ordinary human need becomes the place where that love is tested. But when our hearts accuse us of falling short, where can we find the confidence to stand before God?

In last week’s summary, titled “Love and Hatred, Life and Death,” we explored an important truth in Apostle John’s teaching: Loving our brothers and sisters is evidence that we belong to Father God’s family. Such love isn’t merely a verbal affirmation or an oath of allegiance. It takes shape in truthful, practical acts of care for others.

Here in John’s first epistle, our love for God finds visible expression in our love for one another. After telling his readers that they “should love one another,” John warns them in 3:12–15 not to follow Cain’s example of hatred. He also tells them not to be surprised if the world hates them.

John then brings the warning closer to home: Anyone who hates a brother or sister is a murderer. Hatred isn’t simply an unpleasant attitude; it contradicts the life God gives his children. Love provides evidence that we’ve passed from death to life, while those who don’t love remain in death.

Today follow John from the hatred that marks the world to the love that should distinguish the church and its members. Beginning with Jesus’ willingness to lay down his life for us, John shows us what love looks like — and calls us to express it through practical generosity, not words alone. He then connects that love with assurance before God: (1) reassurance that we belong to the truth (v. 19); (2) comfort in knowing that God is greater than our condemning hearts and knows everything (v. 20); (3) confidence to approach him (v. 21); and (4) confidence in prayer as we keep his commands and do what pleases him (v. 22). Finally, in vv. 23–24, John brings faith and love together in God’s command: Believe in the name of his Son, Jesus Christ, and love one another. He closes by describing our abiding relationship with God and the Spirit’s assurance that God abides in us.

Refocusing from “Hatred” to “Love” (1 John 3:16–17)

Starting with v. 16, John turns our attention from the hatred discussed in Warren’s previous commentary to the church’s hallmark of love. The contrast couldn’t be sharper: Cain took his brother’s life; Jesus laid down his own for us. One reveals hatred that destroys; the other reveals love that gives. In vv. 16–17, John shows us both the meaning of love and our obligation to put it into practice. Jesus’ sacrifice establishes the standard, and a fellow believer’s need gives us an opportunity to follow his example.

At the beginning of chapter 3, John has already explained that love for our brothers and sisters provides evidence that we’ve passed from death to life. (Enlarge image) Hatred, by contrast, reveals that a person remains in death. Now he shows us what this life-giving love looks like: Jesus willingly laid down his life for us. If we want to understand love, we don’t begin with our feelings or intentions; we begin with his sacrifice. Brotherly love is the fruit of new life, not the means by which we earn it.

When John says, “This is how we know what love is” (v. 16a), he identifies Jesus’ self-sacrifice as the yardstick by which we devoted believers re to measure love. But John doesn’t let us remain spectators at the cross. He immediately adds, “And we ought to lay down our lives for our brothers and sisters” (v. 16b). Jesus’ example isn’t merely something to admire; it places an obligation on everyone who follows him. We’re called to seek our fellow believers’ good, even when doing so costs us dearly.

Laying down our lives may, in extraordinary circumstances, mean accepting danger or even death for another person’s sake. Albert Barnes (theologian, 1798–1870) makes that point in his Notes on the Bible:

Yet John immediately brings this costly love into everyday life. Verse 17 asks what happens when someone has material possessions, sees a brother or sister in need, and closes his or her heart against that person. We might never face the choice of dying for another believer, but we’ll face opportunities to share what we have. Love that follows Jesus’ example doesn’t stop at noticing hardship or feeling sympathy. When we have the means to help, it moves us to act.

John follows the extraordinary sacrifice of v. 16 with an ordinary opportunity in v. 17: helping a fellow believer in need. The connection is searching. If we ought to be willing to lay down our lives for our brothers and sisters, shouldn’t we be willing to make the comparatively smaller sacrifice of sharing what we have? John brings the love revealed at the cross into our everyday decisions about possessions and people.

The expression “laid down his life” echoes Jesus’ words in John’s gospel. As the Good Shepherd, Jesus declares that he lays down his life for his sheep — willingly, not because someone forces him to do so (John 10:11, 17–18). Later, he tells his disciples, “Love each other as I have loved you,” and identifies laying down one’s life for one’s friends as the greatest expression of love (John 15:12–13). Christian love takes its character from his self-giving example.

Verse 17 makes that example concrete. John describes someone who has material possessions, sees a brother or sister in need, and nevertheless withholds compassion. The problem isn’t a lack of resources or an unnoticed need. It’s a closed heart. John’s question — “How can the love of God be in that person?” — exposes the contradiction between claiming to have God’s love and refusing to share with someone we’re able to help.

This warning continues John’s earlier contrast between God’s children and the devil’s children. He’s already pointed to Cain’s murderous actions and to hatred toward a brother or sister. Now he confronts a quieter failure of love: indifference to another believer’s need. We don’t have to attack someone to withhold the care that love requires. John challenges not only the harm we do but also the help we refuse to give.

Such self-giving care illustrates agape love — love that seeks another person’s good and expresses itself through action. The Parable of the Good Samaritan provides a vivid illustration of compassion becoming action. The Samaritan doesn’t merely notice the injured man or feel sorry for him. He approaches him, tends his wounds, provides transportation, and pays for his care. Although John’s immediate concern is love within the believing community, Jesus’ parable reminds us that practical mercy reaches beyond our own circle.

For us, sharing material possessions is the immediate application of v. 17. That same self-giving spirit can also shape how we offer our time, abilities, and attention. We won’t all have the same resources, but we can ask an honest question: What has God placed in my hands that could help the person before me? Love doesn’t require us to possess what we don’t have; it challenges us not to close our hearts against needs we can help meet.

If you’re struggling to love a brother or sister, bring that struggle honestly before God. Ask him to expose resentment, loosen your grip on what you have, and help you take a concrete step of care. Don’t confuse a struggle against selfishness with a settled refusal to love. John’s warning should move us toward honest self-examination and active compassion, not leave us endlessly measuring our feelings.

Remember this: Everybody can help somebody. Wishing someone well isn’t the same as helping. When you recognize a need and have the means to respond, don’t assume that “somebody else” will take care of it. John’s next verse makes the call unmistakable: “Let us not love with words or speech but with actions and in truth” (v. 18).

I once heard a story about four people named Everybody, Somebody, Anybody, and Nobody. An important task needed attention, and Everybody assumed Somebody would handle it. Anybody could have done it, but Nobody did. In the end, Everybody blamed Somebody for what Nobody did, even though Anybody could have done it.

The earliest Jerusalem believers offer a better example. In the community formed after Pentecost, believers devoted themselves to the apostles’ teaching, fellowship, the breaking of bread, and prayer. They also sold property and possessions to provide for those in need. Their fellowship wasn’t merely something they talked about; it became visible in worship, shared meals, and practical generosity (Acts 2:42–47).

The lesson is simple: When you see a need and God gives you the ability to meet it, don’t merely notice it — respond to it. Be grateful for the opportunity, and be the one who acts.

Let Us Love with Actions and Truth (3:18–24)

Earlier in this chapter, John described Cain as someone who “belonged to the evil one” (3:12). Now he explains how believers can know that they instead “belong to the truth” (v. 19). The connection found in the contrast between Cain’s hatred and a believer’s love is very practical: Love expressed through truthful actions provides evidence that we belong to God. John isn’t asking us merely to profess love; he’s asking us to put it into practice.

With the affectionate address “Dear children,” John brings his readers back to the importance of genuine love. Words have their place, but words alone won’t feed a hungry person or provide for someone in need. Our expressions of concern should be supported by whatever help we’re able to give (enlarge image). Loving “with actions and in truth” means that our care is genuine, not merely something we say.

James makes a closely related point in his discussion of faith and deeds:

Both writers confront the gap between what we claim and how we live. James warns against a faith that offers reassuring words but no practical help. John calls us to a love that acts sincerely. Neither lets us substitute religious language for compassionate action.

In v. 19, John connects that active love with assurance: “This is how we know that we belong to the truth.” When we see genuine love taking shape in our lives, we see evidence that God’s at work in us. John will develop this connection further: “Whoever does not love does not know God, because God is love” (4:8), and “Whoever lives in love lives in God, and God in them” (4:16). Such love doesn’t earn our place in his family; it helps confirm that we belong to him. John has already expressed this relationship in 3:14: “We know that we have passed from death to life, because we love each other.”

But what happens when our hearts still accuse us? We may recognize real failures, remember opportunities we’ve neglected, or wonder whether our love is sufficient. John doesn’t pretend that believers will never experience these struggles. Instead, he directs us beyond our hearts’ accusations: “God is greater than our hearts, and he knows everything” (v. 20).

God knows us more fully than we know ourselves. Paul expresses a related assurance: “The Lord knows those who are his” (2 Timothy 2:19). Yet the same verse calls everyone who confesses the Lord’s name to turn away from wickedness. God’s knowledge of his people gives us confidence without making obedience unimportant.

Read in the context of setting our hearts at rest, these words offer reassurance. Our self-assessment isn’t the final verdict. God knows us more fully than we know ourselves; he sees both our failures and the genuine faith and love that our troubled hearts may overlook. We shouldn’t ignore sin that needs confession, but neither should we treat every feeling of condemnation as God’s judgment against us. Paul’s assurance belongs alongside John’s: “There is now no condemnation for those who are in Christ Jesus” (Romans 8:1).

John’s concern for assurance also makes sense against the division addressed earlier in his letter. Some had left the community and were trying to lead believers astray. Their error wasn’t simply a failure to practice love: John says they denied that Jesus is the Christ (2:19, 22–26). His readers therefore needed a dependable way to distinguish genuine faith from misleading claims. Throughout the letter, belief in Jesus, obedience to God, and love for fellow believers belong together.

These themes invite three questions:

  › Do you seek to obey God’s commands?

  › Do you actively love your brothers and sisters in Christ?

  › Do you believe in the name of God’s Son, Jesus Christ?

Answer them by looking for the direction and fruit of your life — not flawless obedience, uninterrupted feelings of love, or a perfectly steady conscience. God’s command is to believe in his Son, Jesus Christ, and love one another (v. 23). Assurance rests in God’s saving work in Christ and is confirmed by the pattern of faith, obedience, and love that he produces in us. It isn’t something we manufacture by keeping our conscience untroubled.

John now describes the confidence we believers enjoy when our hearts aren’t condemning us. Rather than shrinking back from God, we can approach him freely. This confidence belongs within a personal relationship shaped by obedience and a desire to please him. It isn’t a reward for reaching sinless perfection; John has already acknowledged believers’ need for forgiveness and for Jesus, our advocate with the Father (2:1–2).

Notice how naturally one’s confidence before God leads to prayer. John says that we “receive from him anything we ask” because we keep his commands and do what pleases him. This isn’t a bargain in which our obedience purchases whatever we want. Later, John explains the confidence of prayer more fully: “If we ask anything according to his will, he hears us” (5:14). Read together, these passages describe prayer arising from fellowship with God — a life that seeks his pleasure and requests that accord with his will.

The plural “commands” in v. 22 becomes the singular “command” in v. 23. John brings God’s requirement into one statement with two inseparable parts: Believe in his Son, Jesus Christ, and love one another. Faith and love aren’t competing obligations; they belong together in the life of God’s children.

These closing verses bring believing, loving, and obeying together. John then describes a mutual abiding: Those who keep God’s commands live in him, and he lives in them. The emphasis isn’t merely on our efforts to remain close to God, but also on his presence within his people.

John concludes with another basis for assurance: “We know it by the Spirit he gave us.” God hasn’t left us to evaluate ourselves by feelings alone. He’s given us his Holy Spirit (watch the BibleProject video clip) as the assurance of his abiding presence. This reference also prepares us for the next chapter, where John will distinguish the Spirit of God from the spirits behind false teaching.

We began by asking where we can find confidence when our hearts accuse us. John directs us to the God who’s greater than our hearts, the command that joins faith in Jesus with love for one another, and the Spirit that God has given us. The love revealed at the cross becomes visible in our actions — and those actions help reassure us that we belong to him.

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