1 John

1 John


The New Testament book of 1 John was written to reassure Christians in their faith, to counter false teachings, to dispel doubts and to build assurance by presenting a clear picture of Jesus Christ. With His entry into human history, Jesus was and is God in the flesh and God in focus – seen, heard and touched by the author of this letter, John the apostle. John walked and talked with Jesus, saw Him heal the sick, heard Him teach, saw Him raise the dead, watched Him die for all mankind, saw Him in His risen glory, saw Him ascend to His Father. John knew God Himself, for he had lived with Him and seen Him work. In this letter, John presents God as light, as love, and as life. John explains in the simplest of terms what it means to have fellowship with God. Yet at the same time when this letter was written, false teachers had entered the church, denying the incarnation of Jesus Christ in the flesh. John wrote to challenge and correct this most serious of heresies, accomplishing not only that goal, but giving Christians a model to follow in combating modern and future heresies.

John opens the letter by giving his credentials as an eyewitness of the incarnation and by stating his reasons for writing (1:1-4). He then presents God as “light”, symbolizing absolute purity and holiness (1:5-7), and he explains how believers can walk in God’s light and have fellowship with Him (1:8-10) with Christ as their defender (2:1-2). John urges them to obey Christ fully and to love all the members of God’s family (2:3-17). He warns his readers of “antichrists” and the antichrists who will try to lead them away from the truth (2:18-29). In the next section, John presents God as “love” – giving, dying, forgiving, and blessing (3:1-4:21). God is love, and because He loves us, He calls us His children and makes us like Christ (3:1-2). This truth should motivate us to live close to Him (3:3-6). We can be sure of our family relationship with God when our lives are filled with good deeds and love for others (3:7-24). Again, John warns of false teachers who twist the truth. We should reject these false teachers (4:1-6) as we continue to live in God’s love (4:7-21). In the last section, John presents God as “life” (5:1-21). God’s life is in His Son. To have His Son is to have eternal life.

The Layout of 1 John

God Is Light:
This is concentrated in (1:1-2:27) …

God Is Love:
This is concentrated in (2:28-4:21) …

God Is Life:
This is concentrated in (5:1-21) … John wrote about the most vital aspects of faith so that his readers would know Christian truth from error. He emphasized the basics of faith so that believers would be confident in that faith. In a dark world, God is light… in a cold world, God brings the warmth of love… in a dying world, God brings life. These truths are certainties, and cement the faith of belivers in the One who loves us without reservation.

Themes: Explanation and Importance


Even Christians sin. Sin requires God’s forgiveness, and Christ’s death provides it for us. Determining to live according to God’s standards in the Bible shows that our lives are being transformed.

We cannot deny our sin nature, maintain that we are “above” sinning, or minimize the consequences of sin in our relationship with God. We must resist the attraction of sin, yet we must confess when we do sin.


Christ commands us to love others as He loved us. This love is evidence that we are truly saved. God is the Creator of love; He cares that His children love one another.

Love means putting others first and being unselfish. Love is action – showing others that we care – not just saying it. To show love, we must give sacrificially of our time and money to meet the needs of others.


We become God’s children by believing in Christ. God’s life in us enables us to love our fellow family members.

How we treat others shows who our Father is. Live as a faithful, loving family member.


Teaching that the physical body does not matter, false teachers encouraged believers to throw off moral restraints. They also taught that Christ wasn’t really a man and that we must be saved by having some special mystical knowledge. The result was that people listening to such false teachers became indifferent to sin.

God is truth and light, so the more we get to know Him the better we can keep focused on the truth. Don’t be led astray by any teaching that denies either Christ’s deity or humanity.


God is in control of heaven and earth. Because His Word is true, we can have assurance of eternal life and victory over sin. By faith we can be certain of our eternal destiny with Him.

Assurance of our relationship with God is a promise, but it is also a way of life. We build our confidence by trusting in God’s Word and in Christ’s provision for our sins.

A Closer Look… 1 Jn. 1:1-10

John discusses Jesus as “The Word of Life”; note how John makes Jesus real for his readers by illustrating how the Apostles heard, saw, and touched Him:

That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked at and our hands have touched – this we proclaim concerning the Word of life. The life appeared; we have seen it and testify to it, and we proclaim to you the eternal life, which was with the Father and has appeared to us. We proclaim to you what we have seen and heard, so that you also may have fellowship with us. And our fellowship is with the Father and with his Son, Jesus Christ. We write this to make our joy complete. (1 Jn. 1:1-4)

John capsulizes the message of “Walking in the Light” to end the first chapter:

This is the message we have heard from him and declare to you: God is light; in him there is no darkness at all. If we claim to have fellowship with him yet walk in the darkness, we lie and do not live by the truth. But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus, his Son, purifies us from all sin. If we claim to be without sin, we deceive ourselves and the truth is not in us. If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness. If we claim we have not sinned, we make him out to be a liar and his word has no place in our lives. (1 Jn. 1:5-10)

A Closer Look… 1 Jn. 2:1-29

John speaks to his readers with comfort for those who sin, which is all humanity:

My dear children, I write this to you so that you will not sin. But if anybody does sin, we have one who speaks to the Father in our defense – Jesus Christ, the Righteous One. He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world. (1 Jn. 2:1-2)

However, obedience is a must for the One who speaks on our behalf before the Father:

We know that we have come to know him if we obey his commands. The man who says, “I know him,” but does not do what he commands is a liar, and the truth is not in him. But if anyone obeys his word, God’s love is truly made complete in him. This is how we know we are in him: Whoever claims to live in him must walk as Jesus did. (1 Jn. 2:3-6)

John explains at some length what this means in practice:

Dear friends, I am not writing you a new command but an old one, which you have had since the beginning. This old command is the message you have heard. Yet I am writing you a new command; its truth is seen in him and you, because the darkness is passing and the true light is already shining. Anyone who claims to be in the light but hates his brother is still in the darkness. Whoever loves his brother lives in the light, and there is nothing in him to make him stumble. But whoever hates his brother is in the darkness and walks around in the darkness; he does not know where he is going, because the darkness has blinded him. (1 Jn. 2:7-11)

John speaks to “dear children”, “fathers”, “young men”… note how impassioned he is!:

I write to you, dear children, because your sins have been forgiven on account of his name. I write to you, fathers, because you have known him who is from the beginning. I write to you, young men, because you have overcome the evil one. I write to you, dear children, because you have known the Father. I write to you, fathers, because you have known him who is from the beginning. I write to you, young men, because you are strong, and the word of God lives in you, and you have overcome the evil one. (1 Jn. 2:12-14)

John is nothing if not sober in his warning: do not love the world:

Do not love the world or anything in the world. If anyone loves the world, the love of the Father is not in him. For everything in the world – the cravings of sinful man, the lust of his eyes and the boasting of what he has and does – comes not from the Father but from the world. The world and its desires pass away, but the man who does the will of God lives forever. (1 Jn. 2:15-17)

In the same vein, John warns against “antichrists”, and explains what that means:

Dear children, this is the last hour; and as you have heard that the antichrist is coming, even now many antichrists have come. This is how we know that it is the last hour. They went out from us, but they did not really belong to us. For if they had belonged to us, they would have remained with us; but their going showed that none of them belonged to us. But you have an annointing from the Holy One, and all of you know the truth. I do not write to you because you do not know the truth, but because you do know it and because no lie comes from the truth. Who is the liar? It is the man who denies that Jesus is the Christ. Such a man is the antichrist – he denies the Father and the Son. No one who denies the Son has the Father; whoever acknowledges the Son has the Father also. (1 Jn. 2:18-23)

John warns his readers:

See that what you have heard from the beginning remains in you. If it does, you also will remain in the Son and in the Father. And this is what he promised us – even eternal life. I am writing these things to you about those who are trying to lead you astray. As for you, the annointing you received from him remains in you, and you do not need anyone to teach you. But as his annointing teaches you about all things and as that annointing is real, not counterfeit – just as it has taught you, remain in him. (1 Jn. 2:24-27)

John ends the chapter with a beautiful summation of his arguments:

And now, dear children, continue in him, so that when he appears we may be confident and unashamed before him at his coming. If you know that he is righteous, you know that everyone who does what is right has been born of him. (1 Jn. 2:28-29)

A Closer Look… 1 Jn. 3:1-24

John begins with a fundamental truth, a beautiful passage of Scripture:

How great is the love the Father has lavished on us, that we should be called children of God! And that is what we are! The reason the world does not know us is that it did not know him. (1 Jn. 3:1)

and follows it with another:

Dear friends, now we are children of God, and what we will be has not yet been made known. But we know that when he appears, we shall be like him, for we shall see him as he is. Everyone who has this hope in him purifies himself, just as he is pure. (1 Jn. 3:2-3)

John discusses how believers are delivered from sin:

Everyone who sins breaks the law; in fact, sin is lawlessness. But you know that he appeared so that he might take away our sins. And in him is no sin. No one who lives in him keeps on sinning. No one who continues to sin has either seen him or known him. (1 Jn. 3:4-6)

John declares why the Son of God appeared in the world, and how to know those who are of the devil from those who are of God:

Dear children, do not let anyone lead you astray. He who does what is right is righteous, just as he is righteous. He who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil’s work. No one who is born of God will continue to sin, because God’s seed remains in him; he cannot go on sinning, because he has been born of God. This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God; nor is anyone who does not love his brother. (1 Jn. 3:7-10)

John exhorts believers to love one another:

This is the message you heard from the beginning: We should love one another. Do not be like Cain, who belonged to the evil one and murdered his brother. And why did he murder him? Because his own actions were evil and his brother’s were righteous. Do not be surprised, my brothers, if the world hates you. We know that we have passed from death to life, because we love our brothers. Anyone who does not love remains in death. Anyone who hates his brother is a murderer, and you know that no murderer has eternal life in him. (1 Jn. 3:11-15)

John declares the truth that is the central lesson of the chapter:

This is how we know what love is: Jesus Christ laid down his life for us. And we ought to lay down our lives for our brothers. (1 Jn. 3:16)

John gives an example of this pure love, and points the way for believers:

If anyone has material possessions and sees his brother in need but has no pity on him, how can the love of God be in him? Dear children, let us not love with words or tongue but with actions and in truth. This then is how we know that we belong to the truth, and how we set our hearts at rest in his presence whenever our hearts condemn us. For God is greater than our hearts, and he knows everything. (1 Jn. 3:17-20)

John speaks to the rewards that come to the believer whose heart is right before God, and declares what the command of God is:

Dear friends, if our hearts do not condemn us, we have confidence before God and receive from him anything we ask, because we obey his commands and do what pleases him. And this is his command: to believe in the name of his Son, Jesus Christ, and to love one another as he commanded us. Those who obey his commands live in him, and he in them. And this is how we know that he lives in us: We know it by the Spirit he gave us. (1 Jn. 3:21-24)

A Closer Look… 1 Jn. 4:1-21

John says to “test the spirits” (the people) that one encounters to know whether or not they are of God, according to their beliefs:

Dear friends, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God, but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and even now is already in the world. (1 Jn. 4:1-3)

John explains this further, giving thanks because believers have God, Who is more powerful than anyone and anything in the world:

You, dear children, are from God and have overcome them, because the one who is in you is greater than the one who is in the world. They are from the world and therefore speak from the viewpoint of the world, and the world listens to them. We are from God, and whoever knows God listens to us; but whoever is not from God does not listen to us. This is how we recognize the Spirit of truth and the spirit of falsehood. (1 Jn. 4:4-6)

John discusses “God as love”… note the power and flowing beauty of these words:

Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God. Whoever does not love does not know God, because God is love. This is how God showed his love among us: He sent his one and only Son into the world that we might live through him. This is love: not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins. Dear friends, since God so loved us, we also ought to love one another. No one has ever seen God; but if we love one another, God lives in us and his love is made complete in us. We know that we live in him and he in us, because he has given us of his Spirit. And we have seen and testify that the Father has sent his Son to be the Savior of the world. If anyone acknowledges that Jesus is the Son of God, God lives in him and he in God. And so we know and rely on the love God has for us. God is love. Whoever lives in love lives in God, and God in him. (1 Jn. 4:7-16)

John explains what this great, enduring love of God has done for those who believe:

In this way, love is made complete among us so that we will have confidence on the day of judgment, because in this world we are like him. There is no fear in love. But perfect love drives out fear, because fear has to do with punishment. The one who fears is not made perfect in love. (1 Jn. 4:17-18)

The highlight of the chapter; an enduring Scriptural truth:

We love because he first loved us. (1 Jn. 4:19)

John gives the best example of what it means to truly love:

If anyone says, “I love God,” yet hates his brother, he is a liar. For anyone who does not love his brother, whom he has seen, cannot love God, whom he has not seen. And he has given us this command: Whoever loves God must also love his brother. (1 Jn. 4:20-21)

A Closer Look… 1 Jn. 5:1-21

John speaks of “God as life”:

Everyone who believes that Jesus is the Christ is born of God, and everyone who loves the father loves his child as well. This is how we know that we love the children of God: by loving God and carrying out his commands. This is love for God: to obey his commands. And his commands are not burdensome, for everyone born of God overcomes the world. This is the victory that has overcome the world, even our faith. Who is it that overcomes the world? Only he who believes that Jesus is the Son of God. (1 Jn. 5:1-5)

John discusses Jesus Christ, the fountain of eternal life, and states that the Godhead is in agreement as to His role in the saving of all humanity… for God Himself, through water, blood and the Holy Spirit, has testified!

This is the one who came by water and blood – Jesus Christ. He did not come by water only, but by water and blood. And it is the Spirit who testifies, because the Spirit is the truth. For there are three that testify – the Spirit, the water and the blood; and the three are in agreement. We accept man’s testimony, but God’s testimony is greater because it is the testimony of God, which he has given about his Son. Anyone who believes in the Son of God has this testimony in his heart. Anyone who does not believe God has made him out to be a liar, because he has not believed the testimony God has given about his Son. And this is the testimony: God has given us eternal life, and this life is in his Son. He who has the Son has life; he who does not have the Son of God does not have life. (1 Jn. 5:6-12)

John starts to write his conclusion, reveling in the confidence that believers have before God:

I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life. This is the confidence that we have in approaching God: that if we ask anything according to his will, he hears us. And if we know that he hears us – whatever we ask – we know that we have what we asked of him. (1 Jn. 5:13-15)

John discusses the concept of “there is sin, and then there is sin“. Believers and non-believers alike sin, but there is a sin of conscious blasphemy against the Holy Spirit that can’t be forgiven – that of denying the power of the Godhead as worked through the Holy Spirit, such as the raising of Jesus Christ from the dead – ascribing the glory and the power and the miracles of God to the evil one. Such a person may be beyond forgiveness, but John asks the believer to pray to God in all circumstances and to leave all judgment in His righteous hands:

If anyone sees his brother commit a sin that does not lead to death, he should pray and God will give him life. I refer to those whose sin does not lead to death. There is a sin that leads to death. I am not saying that he should pray about that. All wrongdoing is sin, and there is sin that does not lead to death. (1 Jn. 5:16-17)

John concludes with words of encouragement, wisdom and warning:

We know that anyone born of God does not continue to sin; the one who was born of God keeps him safe, and the evil one cannot harm him. We know that we are children of God, and that the whole world is under the control of the evil one. We know also that the Son of God has come and has given us understanding, so that we may know him who is true. And we are in him who is true – even in his Son Jesus Christ. He is the true God and eternal life. Dear children, keep yourselves from idols. (1 Jn. 18-21)

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