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Public-domain commentary
Matthew Henry
From his Commentary on the Whole Bible. Henry comments on passages, not single verses — this entry covers 1 John 2:3–6.
These verses may seem to relate to the seventh verse of the former chapter, between which and these verses there occurred an incidental discourse concerning the believer's duty and relief in case of sin, occasioned by the mention of one of the believer's privileges - his being cleansed from sin by the Mediator's blood. In that verse the apostle asserts the beneficial consequence of walking in the light: "We have then fellowship with one another, such divine fellowship and communion as are the prerogative of the church of Christ." Here now succeeds the trial or test of our light and of our love.
I.The trial of our light:
And hereby we do know that we know him, if we keep his commandments, Jo1 2:3. Divine light and knowledge are the beauty and improvement of the mind; it becomes the disciples of the Mediator to be persons of wisdom and understanding. Young Christians are apt to magnify their new light and applaud their own knowledge, especially if they have been suddenly or in a short time communicated; and old ones are apt to suspect the sufficiency and fulness of their knowledge; they lament that they know God, and Christ, and the rich contents of his gospel, no more: but here is the evidence of the soundness of our knowledge, if it constrain us to keep God's commandments. Each perfection of his nature enforces his authority; the wisdom of his counsels, the riches of his grace, the grandeur of his works, recommend his law and government. A careful conscientious obedience to his commands shows that the apprehension and knowledge of these things are graciously impressed upon the soul; and therefore it must follow in the reverse that he that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him, Jo1 2:4. Professors of the truth are often ashamed of their ignorance, or ashamed to own it; they frequently pretend to great attainments in the knowledge of divine mysteries: Thou makest thy boast of God, and knowest his will, and approvest (in thy rational judgment) the things that are more excellent, being instructed out of the law and art confident that thou thyself art (or art fit to be) a guide to the blind, etc., Rom 2:17, etc. But what knowledge of God can that be which sees not that he is most worthy of the most entire and intense obedience? And, if that be seen and known, how vain and superficial is even this knowledge when it sways not the heart unto obedience! A disobedient life is the confutation and shame of pretended religious knowledge; it gives the lie to such boasts and pretences, and shows that there is neither religion nor honesty in them.
II.The trial of our love:
But whoso keepeth his word in him verily is the love of God perfected; hereby know we that we are in him, Jo1 2:5. To keep the word of God, or of Christ, is sacredly to attend thereto in all the conduct and motion of life; in him that does so is the love of God perfected. Possibly, some may here understand God's love to us; and doubtless his love to us cannot be perfected (or obtain its perfect design and fruit) without our practical observance of his word. We are chosen, to be holy and blameless before him in love; we are redeemed, to be a peculiar people, zealous of good works; we are pardoned and justified, that we may be partakers of larger measures of the divine Spirit for sanctification; we are sanctified, that we may walk in ways of holiness and obedience: no act of divine love that here terminates upon us obtains its proper tendency, issue, and effect, without our holy attendance to God's word. But the phrase rather denotes here our love to God; so Jo1 2:15, The love of (to) the Father is not in him; so Jo1 3:17, How dwelleth the love of (to) God in him? Now light is to kindle love; and love must and will keep the word of God; it enquires wherein the beloved may be pleased and served, and, finding he will be so by observance of his declared will, there it employs and exerts itself; there love is demonstrated; there it has its perfect (or complete) exercise, operation, and delight; and hereby (by this dutiful attendance to the will of God, or Christ) we know that we are in him (Jo1 2:5), we know that we belong to him, and that we are united to him by that Spirit which elevates and assists us to this obedience; and if we acknowledge our relation to him, and our union with him, it must have this continued enforcement upon us: He that saith he abideth in him ought himself to walk even as he walked, Jo1 2:6. The Lord Christ was an inhabitant of this world, and walked here below; here he gave a shining example of absolute obedience to God. Those who profess to be on his side, and to abide with him, must walk with him, walk after his pattern and example. The partisans of the several sects of philosophers of old paid great regard to the dictates and practice of their respective teachers and sect-masters; much more should the Christian, he who professes to abide in and with Christ, aim to resemble his infallible Master and head, and conform to his course and prescriptions: Then are you my friends if you do whatsoever I command you, Joh 15:14.
Historical interpretation
Eight Centuries of Reception
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"But whoever keeps His word, in him verily is the love of God perfected: hereby know we that we are in Him," - by faith and love.
The person who really loves God keeps his commandments and by so doing realizes that he knows the love of God. Our obedience results in his love.
"In this we know that we are in Him, if in Him we be perfected." Perfected in love, he calls them: what is perfection of love? To love even enemies, and love them for this end, that they may be brethren. For not a carnal love ought ours to be. To wish a man temporal weal, is good; but though that fail, let the soul be safe. Dost thou wish life to any that is thy friend? Thou doest well. Dost thou rejoice at the death of thine enemy? Thou doest ill. But haply both to thy friend the life thou wishest him is not for his good, and to thine enemy the death thou rejoicest at hath been for his good. It is uncertain whether this present life be profitable to any man or unprofitable: but the life which is with God without doubt is profitable. So love thine enemies as to wish them to become thy brethren; so love thine enemies as that they may be called into thy fellowship. For so loved He who, hanging on the cross, said, "Father, forgive them, for they know not what they do." For he did not say, Father let them live long, me indeed they kill, but let them live. He was casting out from them the death which is for ever and ever, by His most merciful prayer, and by His most surpassing might.
Love sustains all those who try to put God’s commandments into practice.
By this we know that we are in Him, etc. That is, through excessive love, even to pray for enemies, just as He did, saying, "Father, forgive them" (Luke XXIII). Also, to despise all the favorable aspects of the world with a strong mind, to willingly endure insults and reproaches, just as He said: “If anyone desires to come after Me, let him deny himself, and take up his cross, and follow Me” (Luke IX).
But whoever keeps His word, etc. Therefore, truly the one who keeps God's commandments and proves by his love has true knowledge of God. For to know God is to love Him. For whoever does not love Him clearly shows that he does not know how lovable He is. And he has not learned to taste and see how sweet and pleasant the Lord is, who does not strive continuously to please Him through intent devotion.
And by this we know that we have come to know him, if we keep his commandments. Whoever says, "I know him," but does not keep his commandments is a liar, and the truth is not in him. But whoever keeps his word, in him truly the love of God is perfected. By this we know that we are in him. Whoever says he abides in him ought to walk in the same way in which he walked.
"And by this we know." When John had said above that those who believed in the Lord have fellowship with him (1 Jn. 1:6), he now presents what confirms that fellowship towards him, and he says: "And by this we know that we have come to know him." This divine man often uses similar expressions in the same way: as when he says: "He was in the world, and the world was made through him, and the world did not know him." (Jn. 1:10)
Thus, therefore, John now uses the word "to know." That we know him, that is, that we are mixed with him, from this we know if we observe his commandments. The word γινώσκειν, that is, "to know", signifies two things, especially in sacred Scripture, namely to know something: as when it is said: "I have known that the Lord will execute judgment on the poor." (Ps. 139:1) Moreover, it signifies an all-encompassing connection and confirmation towards someone, which is called knowledge: as when it is said, "The Lord knows the ways of the innocent," (Ps. 37:18) and as Paul says, "That we may know God just as we are also known by Him." (1 Cor. 13:12) Similarly, it must be said about ignorance that it is understood in two ways. For just as it seems to external writers that there is one knowledge of opposites. According to this, therefore, to know is taken in two ways in this context. Indeed, when it says, "By this we know," it is taken for knowing; but when it is said, "That we know him," this means that we are firmly joined with him. For he who has a partnership with someone is also joined and connected to him in what he shares.
Therefore, John also adds, "we keep His commandments." From this, that is also resolved: "The Lord knows who are His," (2 Tim. 2:19) and that: "He made Him who knew no sin to be sin for us:" (2 Cor. 5:21) and anything else that is discussed in Sacred Scripture regarding knowledge or ignorance. Then, on the contrary, he confirms the same, using a more abundant proof, and says: Whoever says, "I know him," or "I have fellowship with him," and does not keep his commandments is a liar. For how can it be that the same person is joined to him and yet not joined? Certainly, keeping the commandments indicates obedience, while not observing them indicates that one is by no means a friend.
Therefore, whoever knows God is also known by Him, either having become a partner with God and united with God; and in this, the love of God is evident, through which love he will have the perfection that is in God, and by this, he will judge his closeness to God. For perfect love is indeed exhibited through works. However, since it happens that someone may convey precepts rightly and precisely, while their own affections are sluggish: this is far from God. Therefore, it is said that one who abides in God should also direct the paths of their own life according to Him.
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Summary
First John 2:5 profoundly articulates the inseparable link between a believer's obedience to God's word and the full manifestation of divine love within them, serving as a tangible assurance of their union with Christ. This verse clarifies that genuine faith is not merely intellectual assent but is actively demonstrated through a life lived in conformity to God's revealed will, thereby confirming one's authentic relationship with the Father and the Son.
Context
Literary Context
This verse is strategically placed within John's first epistle, which consistently emphasizes the marks of true Christian fellowship and the distinction between genuine believers and those who merely profess faith. Immediately preceding 1 John 2:5, John addresses the issue of sin and Christ's role as an advocate (1 John 2:1-2). He then sets up a critical test of authentic knowledge of God, stating in 1 John 2:3-4 that "if we say, 'I know him,' and keep not his commandments, he is a liar, and the truth is not in him." Verse 5 then acts as the positive counterpoint, elaborating on the profound spiritual reality that unfolds when a believer does keep God's word, revealing the inner working of God's love and the resulting assurance of being "in Him."
Historical & Cultural Context
John's epistle was likely written towards the end of the first century, addressing a community facing emerging Gnostic-like heresies that downplayed the importance of ethical living and denied the true humanity of Christ. These false teachers often claimed a superior "knowledge" (gnosis) of God without corresponding moral transformation. In this environment, John's emphasis on obedience as a verifiable sign of true faith and genuine knowledge of God was crucial. The concept of "keeping His word" would have resonated with Jewish traditions emphasizing adherence to the Torah, but John redefines it in light of Christ's teachings, emphasizing a relational obedience rooted in love, not mere legalism. The community was also grappling with the challenge of discerning true believers from false ones, making practical tests of faith, such as obedience, highly relevant.
Key Themes
First John is replete with interconnected themes, and 1 John 2:5 significantly contributes to several. The primary theme is Obedience as a Mark of True Faith, asserting that genuine belief is evidenced by active adherence to God's commands, distinguishing true discipleship from empty claims, as also seen in John 14:21. This leads to the theme of The Perfection of God's Love, where "perfected" refers not to God's love for us (which is always complete), but to the love of God within us reaching its intended maturity and full expression through our obedience. This concept of maturing love is echoed in 1 John 4:12. Finally, the verse underscores Assurance of Being "In Him," providing a tangible, experiential basis for believers to know they are truly united with Christ, living in vital fellowship. This assurance is a recurring comfort throughout the epistle, particularly in 1 John 5:13.
Exposition and Analysis
Key Word Analysis
This primary particle functions adversatively, indicating a contrast or transition from the preceding statement. In 1 John 2:4, John describes the one who claims to know God but does not keep His commandments as a liar. Here, "but" introduces the positive counter-example, shifting the focus to the true believer who does keep God's word, thereby presenting the genuine mark of knowing God.
This verb means to guard from loss or injury, to keep the eye upon, to preserve, or to fulfill a command. It implies not merely a passive observance but an active, vigilant adherence. In this context, "keeping" God's word goes beyond intellectual understanding; it signifies a deliberate and sustained commitment to obey, to hold fast to, and to preserve His teachings in one's life, as one would guard a precious treasure.
While "logos" can refer to a specific utterance, a topic, or even reasoning, in the context of John's writings, especially when referring to God's "word," it often carries profound theological weight. Here, it encompasses God's revealed truth, His commandments, His teachings, and His very character as communicated to humanity, particularly through Christ. To keep God's "word" is to embrace and live out the entirety of His divine revelation.
This verb means to complete, to bring to an end, to make perfect, or to bring to maturity. In 1 John 2:5, it does not suggest that God's love for us is incomplete until we obey. Rather, it signifies that God's love, residing within the believer, reaches its full expression, maturity, and intended purpose through the act of obedience. It is the love of God, as a dynamic force in the believer's life, being brought to its consummation and full manifestation in their character and actions.
Verse Breakdown
"But whoso keepeth his word"
This opening clause sets the condition for the profound spiritual reality that follows. The "word" refers to God's revealed will and commandments. "Keeping" implies not just hearing or knowing, but actively obeying, guarding, and living by these divine truths. It highlights the active, volitional aspect of faith that translates into practical righteousness.
"in him verily is the love of God perfected"
This is the core declaration of the verse. "Verily" (alēthōs) emphasizes the truthfulness of the statement. The "love of God" here refers primarily to God's love within the believer, or perhaps the believer's love for God, which is a response to His initiating love. This love is "perfected" (teleióō), meaning it reaches its full expression, maturity, and intended purpose. Obedience becomes the channel through which God's transformative love is fully realized and made evident in a person's life, reflecting His character.
"hereby know we that we are in him"
This final clause provides the assurance and epistemological basis for Christian confidence. "Hereby" points back to the preceding condition – the keeping of God's word and the perfecting of His love. It is through this tangible evidence of obedience and the manifest love of God within us that believers gain genuine assurance of their spiritual union with Christ ("in him"). This is not a subjective feeling but an objective, observable fruit of a transformed life.
Literary Devices
The verse employs several significant literary devices. Contrast is central, as it directly opposes the false claims of knowing God (mentioned in 1 John 2:4) with the authentic evidence of true faith in 1 John 2:5. This stark juxtaposition highlights the critical importance of practical obedience. Assurance is a prominent theme, as the verse explicitly states, "hereby know we that we are in him," providing a clear criterion for believers to confirm their spiritual standing. Furthermore, the concept of love being "perfected" functions as a powerful Metaphor for spiritual growth and maturation. It describes the process by which God's love, initially implanted in the believer, grows to full expression and effectiveness through a life of faithful obedience, rather than implying any prior deficiency in God's inherent love.
Theological and Thematic Connections
First John 2:5 encapsulates a profound theological truth: genuine love for God is intrinsically expressed through obedience to His commands, and this obedience, in turn, facilitates the full manifestation of God's transformative love within the believer, leading to a confident assurance of union with Christ. This dynamic relationship underscores that Christian faith is not a passive intellectual assent but an active, living reality that shapes one's character and conduct. The "perfecting" of God's love in the believer through obedience is a process of sanctification, where the divine nature increasingly permeates and directs human action, making God's love visible to the world.
This principle resonates throughout Scripture:
Reflection and Application
First John 2:5 serves as a powerful mirror for self-examination and a wellspring of assurance for the believer. It challenges us to move beyond mere verbal confession to a life of active, joyful obedience to God's word. This obedience is not a burdensome legalism but a loving response to the One who first loved us, and it is the very means by which we experience the fullness of God's love working through us. As we faithfully endeavor to keep His word, we discover that His love for us, and our love for Him, becomes more deeply rooted and outwardly expressed, transforming us into His likeness. This process provides a tangible, experiential basis for knowing that we are truly "in Him," a profound source of peace and confidence in our spiritual journey. It prompts us to ask: Is my life demonstrating the love of God through active obedience?
Questions for Reflection
FAQ
Does "perfected" in this verse imply that God's love for us is incomplete until we obey?
No, the Greek word teleióō (perfected) in 1 John 2:5 does not mean that God's love for us is deficient or incomplete. God's love for humanity, especially for His children, is always perfect, unconditional, and complete from His side. Rather, "perfected" refers to God's love within the believer, or the believer's love for God, reaching its full expression, maturity, and intended purpose through obedience. It signifies that as we obey God's word, His transformative love becomes fully realized and made evident in our lives, bringing it to its goal or consummation in our character and actions. It's about the manifestation and growth of love, not its initial quality from God's perspective.
Is obedience a condition for salvation according to this verse?
1 John 2:5 does not present obedience as a condition for salvation, but rather as an evidence and fruit of salvation. Salvation is by grace through faith in Jesus Christ (Ephesians 2:8-9). However, genuine saving faith is never alone; it is a living faith that inevitably produces good works and a desire to obey God's commands (James 2:17). This verse, like much of John's epistle, provides tests for assurance of one's existing relationship with God. It teaches that if one is truly "in Him" (united with Christ), then obedience will naturally follow, and through that obedience, the love of God will be perfected (fully expressed) in their life, providing assurance of their union.
Christ-Centered Fulfillment
First John 2:5 finds its ultimate Christ-centered fulfillment in the person and work of Jesus Himself. He is the preeminent example of one who perfectly "kept His word," living a life of absolute obedience to the Father's will (John 8:29). In Jesus, the "love of God" was not just perfected, but fully embodied and revealed to humanity. He is the Logos, the very "Word" of God made flesh (John 1:14), and in keeping the Father's word, He perfectly manifested divine love, culminating in His sacrificial death on the cross (John 15:13). Our ability to "keep His word" and for God's love to be "perfected" in us is entirely dependent on our union with Christ. It is "in Him" that we receive the Holy Spirit, who empowers us to obey (Romans 8:4) and enables God's love to be poured into our hearts (Romans 5:5). Thus, our obedience is a reflection of Christ's perfect obedience, and the perfecting of love in us is a continuation of God's love perfectly revealed in Christ, drawing us deeper into His own life and character.