I John 3:10 · Bible study
1 John 3:10 Commentary: The Two Families Revealed
Greek · 11 what the commentators say
Meaning in one sentence
How failing to do righteousness and love the brother reveals one as a child of the devil rather than a child of God. A study of 1 John 3:10.
Research Summary
- Meaning: A person’s consistent practice of righteousness and brotherly love visibly reveals which spiritual family they belong to, God’s or the devil’s.
- Key words: φανερά (manifest, revealed), τέκνα (children), δικαιοσύνην (righteousness, without article = concrete acts), ἀγαπῶν (loving, present participle = ongoing).
- Main debate: How to pastorally apply this binary test without sliding into works-righteousness or despair. Traditions agree on the test itself but differ on how to preach assurance alongside it.
- Theological theme: Sanctification as evidence of regeneration; love of the brother as the test of true righteousness; the inseparable link between faith and works.
- Best use: A sobering call to self-examination for professing Christians, and a clarifying lens for pastoral discernment about who is walking in the truth.
Translation Comparison
BSB Berean Standard Bible 2020
By this the children of God are distinguished from the children of the devil: Anyone who does not practice righteousness is not of God, nor is anyone who does not love his brother.
WEB World English Bible 2000
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.
KJV King James Version 1769
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.
ASV American Standard Version 1901
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.
YLT Young's Literal Translation 1898
In this manifest are the children of God, and the children of the devil; every one who is not doing righteousness, is not of God, and he who is not loving his brother,
Darby Darby Bible 1890
In this are manifest the children of God and the children of the devil. Whoever does not practise righteousness is not of God, and he who does not love his brother.
Douay-Rheims Douay-Rheims Bible 1899
In this the children of God are manifest, and the children of the devil. Whosoever is not just is not of God, or he that loveth not his brother.
Translations in other languages (10 available)
En esto son manifiestos los hijos de Dios, y los hijos del diablo: cualquiera|strong="G3956, G3588" que no hace justicia, y que no ama á su hermano, no es de Dios.
Nisto são reconhecíveis os filhos de Deus, e os filhos do diabo: todo aquele que não pratica a justiça, e não ama o seu irmão, não é de Deus.
C’ est par là que se font reconnaître les enfants de Dieu et les enfants du diable. Quiconque ne pratique pas la justice n’ est pas de Dieu, non plus que celui qui n’ aime pas son frère.
Daran wird's offenbar, welche die Kinder Gottes und die Kinder des Teufels sind. Wer nicht recht tut, der ist nicht von Gott, und wer nicht seinen Bruder liebhat.
Hierin zijn de kinderen Gods en de kinderen des duivels openbaar. Een iegelijk, die de rechtvaardigheid niet doet, die is niet uit God, en die zijn broeder niet liefheeft,
Da questo sono manifesti i figliuoli di Dio e i figliuoli del diavolo: chiunque non opera la giustizia non è da Dio; e così pure chi non ama il suo fratello.
Po tem poznać dziatki Boże i dzieci dyjabelskie. Wszelki, który nie czyni sprawiedliwości, nie jest z Boga, i który nie miłuje brata swego.
Дети Божии и дети диавола узнаются так: всякий, не делающий правды, не есть от Бога, равно и не любящий брата своего.
從 此 就 顯出誰是 神的 兒女， 誰是魔鬼 的兒女。凡 不 行 義 的就不 屬 神，不 愛 弟兄 的也是如此。
In this way it is clear who are the children of God and who are the children of the Evil One; anyone who does not do righteousness or who has no love for his brother, is not a child of God.
Verse in Context
Original Language (Koine Greek)
New Testament · Koine Greek · I John 3:10
Source: STEPBible TAGNT/TEHB (CC-BY 4.0). Click or tap a morphology code to see the full parsing.
Scholars' Consensus
Commentators across traditions agree that this verse presents a clear test of spiritual parentage. Barnes states that “this furnishes a test of true character.” The test has two parts: doing righteousness and loving one’s brother. Calvin argues that those who “claim a place among the children of God” must prove themselves by a holy life. Cambridge Bible emphasizes that the phrase “children of the devil” occurs only here in the New Testament, and that there is no third alternative, every person belongs to one family or the other.
Gill points out that adoption is a secret act of God’s grace, and regeneration does not make someone a child of God but manifests that they already are one. Vincent notes that the Greek text lacks the article before “righteousness” (δικαιοσύνην), meaning it is viewed not as a complete ideal but as a particular kind of behavior. The present participles “doing” (ποιῶν) and “loving” (ἀγαπῶν) indicate ongoing practice, not isolated acts. So the verse identifies a person’s fundamental orientation, not their perfection.
Clarke calls the verse “a fearful text,” adding that no one is of God who is not ready to act with kindness toward any human being. All commentators tie this back to the earlier argument (1 John 2:29; 3:7) and forward to the call to love one another (3:11). The consensus is clear: conduct reveals nature, and love of the brother is the practical outworking of righteousness.
How settled is the interpretation?
Interpretive difficulty: Low
What is clear: This verse identifies two clear marks of being a child of God: practicing righteousness and loving one's brother. Failure to do both, as a consistent pattern, reveals that a person belongs to the devil's family.
What Scholars Agree and Debate
| Topic | Agreed | Debated |
|---|---|---|
| Meaning of 'children of God' and 'children of the devil' | All Christians agree that these phrases describe two distinct spiritual families determined by one's relationship to God through Christ (cf. John 8:44; 1 John 3:8). | Some traditions (e.g., Reformed) see this as an unchanging eternal decree revealed over time; others (e.g., Wesleyan) emphasize the possibility of moving from one family to the other through faith and obedience. |
| Role of works in revealing spiritual identity | Everyone agrees that good works and love are necessary evidence of genuine faith, not optional extras. The Reformation sola fide principle never meant that faith could be alone. | Catholics and Orthodox see infused righteousness making works meritorious; Protestants see works as fruits and evidences of imputed righteousness, not the ground of acceptance. |
| The binary nature of humanity | The verse presents only two categories, and Christians across traditions affirm that outside of Christ there is no salvation (John 14:6). | The fate of those who have never heard the gospel is debated: some hold that explicit faith in Christ is necessary; others allow for an invincible ignorance or post-mortem opportunity. |
| What 'not doing righteousness' means | It refers to a habitual pattern, not isolated failures. All agree that a believer can sin but not persist in unrighteousness as a lifestyle (1 John 3:9). | The interpretation of 'practicing sin' vs. 'committing sin' in v. 6-9 carries over here. Lutherans and Reformed emphasize that the believer's new nature cannot sin ultimately; Wesleyans see the possibility of entire sanctification that eliminates willful sin. |
Historical & Cultural Context
John writes to a congregation facing internal division and external pressure from false teachers who likely denied the ethical implications of knowing God (see 1 John 1:6; 2:4). These opponents seem to have claimed a special spiritual status while living without moral transformation. John’s response is blunt: a person’s actions reveal which family they truly belong to.
The phrase “children of the devil” (τέκνα τοῦ διαβόλου) is unique to this verse in the New Testament, though the idea of spiritual lineage appears in John 8:44 and Acts 13:10. In Jewish tradition, “children of Samael” (the devil) was a known expression (Gill cites a rabbinic source). The binary division, children of God versus children of the devil, reflects the strong dualism of the Johannine community: light and darkness, truth and falsehood, life and death. This is not a philosophical dualism of equal powers; rather, one chooses one’s parent in the moral world by the life one lives (Cambridge Bible).
The mention of “brother” (ἀδελφός) echoes the commandment Jesus gave to his disciples (John 13:34-35) and the pattern of Cain, who killed his brother because his own deeds were evil (v. 12). In a community that was likely being ostracized by the synagogue and the Roman world, brotherly love was both a survival strategy and the clearest evidence of having passed from death to life (1 John 3:14).
The first readers would have understood family identity as determinative, inheritance, status, and obligations all flowed from one’s paternity. John argues that spiritual paternity is even more consequential. To claim God as Father while failing to do righteousness or love one’s brother is to contradict the most basic reality of who you are.
Textual Notes
The Greek text of 1 John 3:10 is stable across the major manuscript traditions (NA28, TR, Byzantine). No significant variant affects the meaning. The only minor variation is the presence or absence of the conjunction καί before the final clause in some witnesses, but this does not alter the sense, it simply connects the two negative statements slightly differently. The consulted sources note no textual issues requiring comment.
Reception History
This verse has been used throughout church history to warn against antinomianism and false assurance. The early church father Polycarp, a disciple of John, echoed its language when confronting heretics (as noted by Irenaeus). Augustine’s two cities theology, the earthly city and the city of God, parallels John’s binary of two spiritual families. During the Reformation, both Luther and Calvin appealed to this text to argue that saving faith necessarily produces good works. In the Wesleyan revival, Adam Clarke preached from it as a “fearful text” calling hearers to examine whether they were children of God or of the devil. In modern pastoral practice, the verse has been a source of both comfort (assurance for those who love the brethren) and challenge (pricking the conscience of the nominal Christian). It is often read in services of baptism and confirmation as a reminder of the identity that grace creates.
Preaching This Verse
Three-point outline
- Two families exist. Every person is either a child of God or a child of the devil, there is no spiritual middle ground. (1 John 3:10a; Matthew 13:38)
- The first mark: doing righteousness. Those who consistently fail to practice what is right reveal that they are not “of God.” This is not about sinless perfection but about direction and habit (v. 10b; 1 John 3:7).
- The second mark: loving the brother. A child of God loves those whom God loves. A consistent lack of brotherly love is evidence that a person does not belong to God (v. 10c; 1 John 3:14-15).
Five-point outline
- How children are revealed: The verb φανερά (manifest) points to visible evidence of an invisible reality. A tree is known by its fruit (Matthew 7:16-20).
- The binary nature of humanity: John’s strong contrast echoes Jesus’ words in John 8:44-47. There is no third category.
- Righteousness practiced, not professed: The anarthrous δικαιοσύνην (without the article) points to concrete acts, not an abstract status. The present participle “doing” (ποιῶν) implies habitual practice.
- Love as the sum of righteousness: Love fulfills the law (Galatians 5:14). John consistently pairs ethical behavior with relational affection, they cannot be separated.
- Pastoral warning and comfort: This verse is a mirror. It warns the hypocrite and gives the humble a tangible way to check their standing before God. Assurance grows not from perfect performance but from direction: do you practice righteousness and love your brother?
Illustration hooks
- Family resemblance. A child who has been separated from their parents at birth is reunited by recognizable traits, similar mannerisms, tone of voice, facial features. In the spiritual family, the family trait is love that looks like action.
- Weeds in a wheat field. Jesus’ parable of the wheat and tares (Matthew 13:38). The two look almost identical until harvest time. John is saying that in this age, the fruit eventually reveals which is which.
- Citizenship test. A person claiming to be a citizen of a country must show the passport, speak the language, obey the laws. Claiming to be a child of God without practicing righteousness or love is like claiming citizenship without any evidence.
Questions your congregation is asking
- Does this mean I have to be perfect to be saved? What about when I fail?
- How much love is enough to prove I’m a child of God?
- What if I struggle with loving a specific person in the church?
Leading a Discussion
This passage is direct and sobering. John gives us a mirror: what we actually do and whom we actually love reveals our spiritual family. But remember, John writes this to assure believers (1 John 5:13), not to frighten them. He wants us to know that the grace of God produces real change. As you discuss, resist the temptation to use this passage as a weapon. Instead, let it search your own heart.
Discussion questions
- What do you think it means to be “manifest” or revealed as a child of God? How is that different from earning that status?
- Read the verse again out loud. What stands out to you about the way John puts the two tests together, righteousness and love?
- Why do you think John uses the strong phrase “children of the devil”? Does that language trouble you? Why or why not?
- How does the context of Cain and Abel (v. 12) help us understand what “not loving your brother” looks like in real life?
- In your own words, what is the difference between “practicing righteousness” and trying to earn God’s approval? How can we tell which one we are doing?
- This verse says nothing about feelings. Why do you think John focuses on actions, doing righteousness, loving, rather than emotions?
- How would you respond to a believer who says, “I’m afraid this verse means I’m not saved because I don’t love well enough”? What would comfort them?
Word Study
The key original-language words in this verse. Select any word for its full lexicon entry — meaning, every occurrence in Scripture, and related words.
Cross-References
Source: Treasury of Scripture Knowledge (TSK, public domain)
| Matthew 13:38 | the field is the world, the good seeds are the children of the Kingdom, and the darnel weeds are the children of the evil one. |
| Luke 6:35 | But love your enemies, and do good, and lend, expecting nothing back; and your reward will be great, and you will be children of the Most High; for he is kind toward the unthankful and evil. |
| John 8:44 | You are of your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and doesn’t stand in the truth, because there is no truth in him. When he speaks a lie, he speaks on his own; for he is a liar, and the father of lies. |
| John 8:47 | He who is of God hears the words of God. For this cause you don’t hear, because you are not of God.” |
| Acts 13:10 | and said, “You son of the devil, full of all deceit and all cunning, you enemy of all righteousness, will you not cease to pervert the right ways of the Lord? |
| Romans 8:16 | The Spirit himself testifies with our spirit that we are children of God; |
| Romans 8:17 | and if children, then heirs—heirs of God and joint heirs with Christ, if indeed we suffer with him, that we may also be glorified with him. |
| Ephesians 5:1 | Be therefore imitators of God, as beloved children. |
Interlinear and lexical data from STEPBible (CC BY 4.0). Cross-reference data from OpenBible.info (CC BY 4.0). Commentaries are public domain.
For personal reflection
Read the devotional page — prayer, application, and "for families"
What the Commentators Say
10 public-domain commentaries, condensed into plain language.
Adam Clarke's Commentary Methodist/Wesleyan 1826
Clarke calls this a fearful text because it strips away all creedal protections and makes a single, concrete test: whoever practices righteousness belongs to God, and whoever practices sin does not. No one can claim to be God's child without being ready to show active kindness to any person, since all humanity is one family.
Barnes' Notes on the Bible Protestant 1832
Barnes notes that the singular pronoun "this" points to both doing righteousness and loving the brethren as a single test of character. He suggests John intentionally links the two, implying that brotherly love is an essential part of righteousness itself, not merely a separate requirement.
Calvin's Commentaries Reformed 1564
Calvin insists that those who claim to be God's children must prove it by a holy life, because that is how they differ from the devil's children. Yet he clarifies that this evidence is not always visible to the whole world; the point is simply that the fruit of adoption always shows in a person's conduct.
Cambridge Bible for Schools and Colleges Anglican 1880
The commentator stresses that invisible moral principles become visible through their results, just as a tree is known by its fruit. All people are God's children by creation, but each must choose his own parent in the moral world: either God or the devil, with no third alternative.
Geneva Bible Notes Reformed 1599
The Geneva note states that the decisive mark for telling apart God’s children from the devil’s children is whether a person practices righteousness and loves his brother. Anyone who does not do righteousness or does not love his brother proves he is not of God.
Gill's Exposition of the Bible Baptist 1748
Gill draws a careful distinction: adoption makes someone a child of God secretly, while regeneration gives them the nature and manifests that adoption to themselves and others. He warns that those who do not practice righteousness or love their brother show they are not born of God.
Lange's Commentary Reformed 1857
Lange stresses that John defines sin not merely as a moral failing but as lawlessness—a direct violation of God's law. Any act of sin, no matter how small, carries this character of rebellion against divine order. This gives sin a far more severe and serious nature than many readers assume.
Matthew Henry's Commentary Reformed/Presbyterian 1710
For Henry, sin is not merely a mistake but lawlessness -- a direct rebellion against God's holy law. He stresses this definition to show why a true believer cannot live in sin: it contradicts the very nature of the God whose child he has become.
Vincent's Word Studies Evangelical 1887
Vincent highlights the Greek article's absence before "righteousness," showing that John presents it here not as a full, defined quality but as a specific kind of conduct. He also notes that "children of the devil" appears only in this verse and contrasts it with other nouns that sometimes carry the article.
Wesley's Explanatory Notes Methodist/Wesleyan 1754
Wesley notes that the phrase "neither he that loveth not his brother" marks a deliberate shift in the argument. What began as a broad, general statement now narrows to one specific case: the command to love a fellow believer. This structural observation shows how the writer moves from a universal principle to a concrete application.