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Study this verse
Public-domain commentary
Matthew Henry
From his Commentary on the Whole Bible. Henry comments on passages, not single verses — this entry covers 1 John 4:17–21.
The apostle, having thus excited and enforced sacred love from the great pattern and motive of it, the love that is and dwells in God himself, proceeds to recommend it further by other considerations; and he recommends it in both the branches of it, both as love to God, and love to our brother or Christian neighbour.
I.As love to God, to the primum amabile - the first and chief of all amiable beings and objects, who has the confluence of all beauty, excellence, and loveliness, in himself, and confers on all other beings whatever renders them good and amiable. Love to God seems here to be recommended on these accounts: - 1. It will give us peace and satisfaction of spirit in the day when it will be most needed, or when it will be the greatest pleasure and blessing imaginable: Herein is our love made perfect, that we may have boldness in the day of judgment, Jo1 4:17. There must be a day of universal judgment. Happy they who shall have holy fiducial boldness before the Judge at that day, who shall be able to lift up their heads, and to look him in the face, as knowing he is their friend and advocate! Happy they who have holy boldness and assurance in the prospect of that day, who look and wait for it, and for the Judge's appearance! So do, and so may do, the lovers of God. Their love to God assures them of God's love to them, and consequently of the friendship of the Son of God; the more we love our friend, especially when we are sure that he knows it, the more we can trust his love. As God is good and loving, and faithful to his promise, so we can easily be persuaded of his love, and the happy fruits of his love, when we can say, Thou that knowest all things knowest that we love thee. And hope maketh not ashamed; our hope, conceived by the consideration of God's love, will not disappoint us, because the love of God is shed abroad in our hearts by the Holy Ghost that is given to us, Rom 5:5. Possibly here by the love of God may be meant our love to God, which is shed abroad upon our hearts by the Holy Ghost; this is the foundation of our hope, or of our assurance that our hope will hold good at last. Or, if by the love of God be meant the sense and apprehension of his love to us, yet this must suppose or include us as lovers of him in this case; and indeed the sense and evidence of his love to us do shed abroad upon our hearts love to him; and thereupon we have confidence towards him and peace and joy in him. He will give the crown of righteousness to all that love his appearing. And we have this boldness towards Christ because of our conformity to him: Because as he is so are we in this world, Jo1 4:17. Love hath conformed us to him; as he was the great lover of God and man, he has taught us in our measure to be so too, and he will not deny his own image. Love teaches us to conform in sufferings too; we suffer for him and with him, and therefore cannot but hope and trust that we shall also be glorified together with him, Ti2 2:12. 2. It prevents or removes the uncomfortable result and fruit of servile fear: There is no fear in love (Jo1 4:18); so far as love prevails, fear ceases. We must here distinguish, I judge, between fear and being afraid; or, in this case, between the fear of God and being afraid of him. The fear of God is often mentioned and commanded as the substance of religion (Pe1 2:17; Rev 14:7); and so it imports the high regard and veneration we have for God and his authority and government. Such fear is constant with love, yea, with perfect love, as being in the angels themselves. But then there is a being afraid of God, which arises from a sense of guilt, and a view of his vindictive perfections; in the view of them, God is represented as a consuming fire; and so fear here may be rendered dread; There is no dread in love. Love considers its object as good and excellent, and therefore amiable, and worthy to be beloved. Love considers God as most eminently good, and most eminently loving us in Christ, and so puts off dread, and puts on joy in him; and, as love grows, joy grows too; so that perfect love casteth out fear or dread. Those who perfectly love God are, from his nature, and counsel, and covenant, perfectly assured of his love, and consequently are perfectly free from any dismal dreadful suspicions of his punitive power and justice, as armed against them; they well know that God loves them, and they thereupon triumph in his love. That perfect love casteth out fear the apostle thus sensibly argues: that which casteth out torment casteth out fear or dread: Because fear hath torment (Jo1 4:18) - fear is known to be a disquieting torturing passion, especially such a fear as is the dread of an almighty avenging God; but perfect love casteth out torment, for it teaches the mind a perfect acquiescence and complacency in the beloved, and therefore perfect love casteth out fear. Or, which is here equivalent, he that feareth is not made perfect in love (Jo1 4:18); it is a sign that our love is far from being perfect, since our doubts, and fears, and dismal apprehensions of God, are so many. Let us long for, and hasten to, the world of perfect love, where our serenity and joy in God will be as perfect as our love! 3. From the source and rise of it, which is the antecedent love of God: We love him, because he first loved us, Jo1 4:19. His love is the incentive, the motive, and moral cause of ours. We cannot but love so good a God, who was first in the act and work of love, who loved us when we were both unloving and unlovely, who loved us at so great a rate, who has been seeking and soliciting our love at the expense of his Son's blood; and has condescended to beseech us to be reconciled unto him. Let heaven and earth stand amazed at such love! His love is the productive cause of ours: Of his own will (of his own free loving will) begat he us. To those that love him all things work together for good, to those who are the called according to his purpose. Those that love God are the called thereto according to his purpose (Rom 8:28); according to whose purpose they are called is sufficiently intimated in the following clauses: whom he did predestinate (or antecedently purpose, to the image of his Son) those he also called, effectually recovered thereto. The divine love stamped love upon our souls; may the Lord still and further direct our hearts into the love of God! Th2 3:5.
II.As love to our brother and neighbour in Christ; such love is argued and urged on these accounts:
- 1. As suitable and consonant to our Christian profession. In the profession of Christianity we profess to love God as the root of religion: "If then a man say, or profess as much as thereby to say, I love God, I am a lover of his name, and house, and worship, and yet hate his brother, whom he should love for God's sake, he is a liar (Jo1 4:20), he therein gives his profession the lie." That such a one loves not God the apostle proves by the usual facility of loving what is seen rather than what is unseen: For he that loveth not his brother, whom he hath seen, how can he love God, whom he hath not seen? Jo1 4:20. The eye is wont to affect the heart; things unseen less catch the mind, and thereby the heart. The incomprehensibleness of God very much arises from his invisibility; the member of Christ has much of God visible in him. How then shall the hater of a visible image of God pretend to love the unseen original, the invisible God himself? 2. As suitable to the express law of God, and the just reason of it: And this commandment have we from him, that he who loveth God love his brother also, Jo1 4:21. As God has communicated his image in nature and in grace, so he would have our love to be suitably diffused. We must love God originally and supremely, and others in him, on the account of their derivation and reception from him, and of his interest in them. Now, our Christian brethren having a new nature and excellent privileges derived from God, and God having his interest in them as well as in us, it cannot but be a natural suitable obligation that he who loves God should love his brother also.
Historical interpretation
Six Centuries of Reception
6 surviving comments on this verse. Each one is dated, so this reads as a timeline rather than a list.
Select a marker to jump to its quote. Markers stagger vertically where authors wrote within a few decades of each other.
Brethren, I am never satiated in speaking of charity in the name of the Lord. In what proportion ye have an insatiable desire of this thing, in that proportion we hope the thing itself is growing in you, and casting out fear, that so there may remain that chaste fear which is for ever permanent. Let us endure the world, endure tribulations, endure the stumbling-blocks of temptations. Let us not depart from the way; let us hold the unity of the Church, hold Christ, hold charity. Let us not be plucked away from the members of His Spouse, not be plucked away from faith, that we may glory in His coming: and we shall securely abide in Him, now by faith, then by sight, of whom we have so great earnest, even the gift of the Holy Spirit.
And now I make it good by another proof. This same apostle hath said, "He gave us commandment that we should love one another." How canst thou be said to love Him whose commandment thou hatest? Who shall say, I love the emperor, but I hate his laws? In this the emperor understands whether thou love him, that his laws be observed throughout the provinces. Our Emperor's law, what is it? "A new commandment give I unto you, that ye love one another." Thou sayest then, that thou lovest Christ: keep His commandment, and love thy brother. But if thou love not thy brother, how canst thou be said to love Him whose commandment thou despisest?
"For he that loveth not his brother whom he seeth, how can he love God whom he seeth not? And this commandment have we from Him, that he who loveth God love his brother also." Marvellous fine talk it was, that thou didst say, "I love God," and hatest thy brother! O murderer, how lovest thou God? Hast thou not heard above in this very epistle, "He that hateth his brother is a murderer"? Yea, but I do verily love God, however I hate my brother. Thou dost verily not love God, if thou hate thy brother.
The person who loves God keeps his commandments, and loving one’s brother is the fulfillment of those commandments. The person who does not love his brother has not kept the commandments and by not keeping them has not loved God. The one who says he loves but does not do so is a liar.
And this commandment we have from God, etc. For how can you love him whose command you hate? Who is it who says: I love the emperor, but I hate his laws? Not so the true lover of God, but: See (he says) that I have loved your commands, O Lord (Psalm CXVIII). And therefore he confidently adds: Quicken me in your mercy (Ibid.).
We love him, because he first loved us. If anyone says, "I love God," and hates his brother, he is a liar. For he who does not love his brother whom he has seen, how can he love God whom he has not seen? And this commandment we have from him, that he who loves God must love his brother also.
"If anyone says, 'I love God.'" Where John shows with compelling reasons that love is transmitted from God to us, and from us to God, he adds again that if God has loved us in this way, we also must love one another: now referring again to this matter, he says that because it is our duty to love our brother, we fulfill the obligation by referring to the example of God's love for us, which we also return to God: it is necessary, he says, to love our brother exceptionally, as the most perfect sign of love towards God. For if this is not the case, neither would our love towards God be preserved, since the obligation that exists between us is interceding, which we have contracted out of love towards God.
"For he who does not love his brother." Moreover, he adds a most effective saying to convince those who attempt to corrupt divine love, saying: Love, in any case, consists of the habitual relations towards one another: relations, however, has the aspect of a brother, and from this, it is especially gathered to that love. If this is true, whoever does not act on what more strongly attracts to love, and does not love the brother whom he sees, how can he claim to love God whom he does not see, with whom he has neither conversed nor can be perceived in any sense, how will he be found to be truthful? Therefore, if anyone shamelessly says that he loves God, but hates his brother, is he not found not only to corrupt divine love but also to be a transgressor of His command? Of whom? Of Him who says: "By this all will know that you are my disciples, if you have love for one another." (Jn. 13:35) Therefore, whoever loves God, and claims to be His disciple, must also love his brother according to His command.
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Summary
This verse serves as the capstone of John's discourse on divine love, articulating a non-negotiable truth: the love for God is inextricably linked to and evidenced by the love for one's fellow believer. This verse presents a direct commandment, flowing from the very character of God as love, asserting that genuine faith manifests not only in vertical devotion but also in horizontal compassion and practical care within the community of faith.
Context
Literary Context
This verse concludes a profound and sustained argument throughout 1 John 4, where John meticulously builds the case for love as the supreme identifier of true Christianity. Having established that "God is love" (1 John 4:8) and that His love was supremely demonstrated in the atoning sacrifice of His Son (1 John 4:9-10), John argues that those who have received this divine love must necessarily manifest it towards others. The immediate preceding verse, 1 John 4:20, presents a stark rhetorical question, challenging the hypocrisy of claiming to love an invisible God while hating a visible brother. 1 John 4:21 then provides the definitive, positive commandment that resolves this tension, making the love for one's brother a direct and inescapable consequence of loving God.
Historical & Cultural Context
John's epistle was likely written towards the end of the first century, addressing Christian communities facing internal divisions and external pressures, particularly from proto-Gnostic teachings that denied the true humanity of Christ and often led to a devaluation of ethical conduct. In this environment, a purely intellectual or mystical understanding of faith, detached from practical love, was a significant danger. John emphasizes that genuine spiritual life is not merely about correct doctrine (though that is vital) but also about demonstrable love, which serves as a counter-witness to the divisive tendencies of false teachers. The concept of "brother" (ἀδελφός) in this context primarily refers to fellow members of the Christian community, highlighting the importance of unity and mutual care within the nascent church, a radical concept in a Roman world often characterized by social stratification and self-interest.
Key Themes
1 John 4:21 powerfully reinforces several key themes prevalent throughout 1 John. Firstly, it underscores the Divine Imperative of Love, asserting that loving one another is not an optional suggestion but a direct mandate from God Himself, flowing from His very nature. This echoes Jesus' "new commandment" in John 13:34. Secondly, it highlights the Inseparable Nature of Love for God and Love for Neighbor. John consistently argues that these two dimensions of love are intrinsically linked; one cannot genuinely possess the former without demonstrating the latter. This mirrors the summary of the Law and Prophets given by Jesus in Matthew 22:37-40. Finally, the verse emphasizes Love as the Evidence of True Faith and Relationship with God. The presence of active, sacrificial love for others becomes the tangible, observable proof of an internal transformation wrought by God's indwelling love, serving as a vital counterpoint to those who might claim spiritual knowledge without ethical fruit.
Exposition and Analysis
Key Word Analysis
This word, derived from a verb meaning "to enjoin" or "to charge," signifies an authoritative prescription or injunction. It is not a mere suggestion or a piece of advice, but a divine mandate. In the context of 1 John, "commandment" often refers to the core ethical demands of the Christian life, particularly the command to love, which sums up all other moral obligations. This specific "commandment" is presented as a direct, non-negotiable directive from God.
This verb describes agape love, which is distinct from other forms of love (like phileo for affection or eros for passionate desire). Agape is a volitional, self-sacrificial, and benevolent love that seeks the highest good of the other, regardless of their worthiness or the recipient's response. It is the very nature of God (1 John 4:8) and the defining characteristic of His children. The repetition of this verb emphasizes its centrality and the active nature of this love.
Literally meaning "from the same womb," this term primarily refers to fellow members of the Christian community, emphasizing their shared spiritual birth and familial bond in Christ. While the principles of Christian love extend to all humanity, John's immediate focus is on the unity and mutual care within the body of believers. This term highlights the intimate and personal nature of the love commanded.
Verse Breakdown
"And this commandment have we from him"
This clause firmly establishes the divine origin and authoritative nature of the instruction. The "him" refers to God, from whom all true commandments flow, particularly the command to love, as God Himself is the ultimate source and embodiment of love. The phrase "have we" underscores that this is not a new or optional teaching, but a fundamental truth received by believers.
"That he who loveth God"
This introduces the first part of the inseparable couplet. John asserts that genuine love for God is the prerequisite and foundation for the subsequent action. It is a love that acknowledges God's character, His saving work, and His supreme worthiness of devotion. This love is not merely intellectual assent but a deep, heartfelt affection and commitment.
"love his brother also"
This is the direct, imperative consequence and tangible expression of the love for God. The "also" (καί) emphasizes the intrinsic link, indicating that these two loves are not separate options but two sides of the same coin. If one truly loves God, that love will inevitably overflow into active, benevolent love for fellow believers, making it the visible proof of an invisible devotion.
Literary Devices
1 John 4:21 employs a Didactic Tone, characteristic of John's epistle, directly instructing the reader on a fundamental truth of Christian living. The verse functions as a Summary Statement, bringing to a definitive close John's extended argument in 1 John 4 regarding the nature and necessity of love. It utilizes Juxtaposition by implicitly contrasting the love for the invisible God with the love for the visible brother, a theme explicitly stated in the preceding verse (1 John 4:20). The structure of the verse itself presents a clear Conditional Imperative (implied: "If one loves God, then he must love his brother"), though stated as a direct command, emphasizing the non-negotiable link between the two. The repetition of the concept of "love" (ἀγαπάω) serves as a form of Emphasis, underscoring the singular importance of this virtue in the Christian life.
Theological and Thematic Connections
This commandment from God reveals the holistic nature of true faith: it is never solely vertical (God-ward) but always extends horizontally (man-ward). The love for God, which is a response to His prior love for us (1 John 4:19), inherently transforms our relationships with others. It's a theological truth that God's character of agape love, once received, compels and enables believers to reflect that same self-giving love to their spiritual family. To claim devotion to the invisible God while neglecting or despising the visible image-bearer of God, especially a fellow believer, is a contradiction in terms, demonstrating a fundamental misunderstanding or absence of genuine divine love.
Reflection and Application
1 John 4:21 stands as a profound challenge and a guiding light for every believer. It calls us beyond mere theological assent to a vibrant, active demonstration of God's love in our daily lives. This means cultivating a heart that seeks the well-being of others, particularly those within the family of faith. It compels us to move past superficial interactions to genuine empathy, forgiveness, patience, and sacrificial service. In a world often characterized by division, self-interest, and animosity, the church is called to be a counter-cultural community where love for God is tangibly expressed through love for one another, becoming a powerful witness to the transforming power of the Gospel. Our love for God is not truly tested or proven in isolation, but in the crucible of our relationships.
Questions for Reflection
FAQ
Why does John emphasize loving our "brother" so strongly, rather than just loving God?
John emphasizes loving our "brother" (fellow believer) so strongly because it serves as the tangible, verifiable evidence of our invisible love for God. As 1 John 4:20 powerfully states, "If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?" Our ability to love God is demonstrated by our obedience to His command to love those we can see and interact with. It's the practical outworking of our faith and the primary way the world recognizes true discipleship, as Jesus taught in John 13:35.
Christ-Centered Fulfillment
1 John 4:21 finds its ultimate fulfillment and deepest meaning in Jesus Christ. He is not only the source of this commandment but also its perfect embodiment. Christ Himself is the ultimate demonstration of God's love, having loved us "while we were yet sinners" (Romans 5:8) and laying down His life for us (John 15:13). His entire ministry was characterized by selfless love for humanity, healing the sick, feeding the hungry, and ultimately offering Himself as the propitiation for our sins. The "commandment" that believers "have from him" is not an arbitrary rule, but a call to participate in the very nature of God, revealed and empowered by Christ. Through the indwelling Holy Spirit, who pours God's love into our hearts (Romans 5:5), believers are enabled to love as Christ loved, making the love for one another the undeniable mark of those who follow the Lamb of God. Thus, this verse is a call to Christ-likeness, reflecting His love to the world through our relationships.