BIBLE BOOK GUIDE
1 John
5 chapters
1 John calls believers to fellowship with God in truth, to walk in the light, and to stand firm in the assurance of eternal life through the Son who was from the beginning.
1 John
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Why this book was written
Written near the end of the first century to churches likely in Asia Minor, 1 John addresses the threat of schismatic teachers—early proto-Gnostic voices—who denied Christ's incarnation and dismissed the duty of brotherly love. John writes to (1) strengthen believers' assurance of salvation (5:13); (2) defend apostolic truth—that Christ truly came in the flesh, that God is light, and that God is love; and (3) exhort believers to lives that match the gospel—confession of sin, love for one another, and victory over the world.
Structure
- 1:1–2:14Fellowship in the Light: The Word of Life Declared
- 2:15–3:24Walking in Truth: Children, Young Men, Fathers, and the World
- 4:1–4:21Testing the Spirits: God Is Love
- 5:1–5:21Victorious Faith: Assurance and Eternal Life
Major themes
God is Light and Truth
John declares that God is light and in Him there is no darkness (1:5). Believers walk in the light, have fellowship with God and with one another (1:6-7), forming the ethical foundation of the epistle.
Confession and Forgiveness
If we confess our sins, God—who is faithful and just—will forgive and cleanse us from all unrighteousness (1:9). Confession restores fellowship rather than producing shame.
Love for One Another
Loving one another is the new commandment and the mark of true discipleship (3:23; 4:7,21). Whoever does not love remains in death (3:14), because love originates from God (4:7-8).
Children of God versus the World
Everyone who believes that Jesus is the Christ is born of God (5:1) and overcomes the world (5:4). Yet the world with its desires passes away, while the one who does the will of God abides forever (2:15-17).
The Spirit's Witness and Discernment
The Spirit dwells in believers (3:24; 4:13) and enables us to test the spirits (4:1-3). Every spirit that confesses that Jesus Christ has come in the flesh is from God (4:2).
How it points to Christ
1 John reveals Christ in three ways. First, He is the eternal Word of life who became flesh and was manifested to the apostles (1:2; 4:2). Second, He is the propitiation for our sins and our advocate before the Father (2:1-2). Third, He is the life itself that the Father has given to believers—everyone who has the Son has life (5:11-12). Christ is also the embodiment of God's love, defining what love truly is and sending us to love one another as He loved us (3:16; 4:9-11).
Key verses
- 1:7Summarizes the book's twin themes: fellowship in the light and cleansing from sin through the blood of Jesus.
- 2:3–4Knowing God is verified by obedience—truth is visible in how one lives.
- 2:23Denying the Son means forfeiting the Father—the direct rebuttal of those rejecting Christ's incarnation.
- 3:16Christ laid down His life as the definition of love—true love must move to action.
- 4:8The book's most concentrated theological claim: the one who does not love does not know God.
- 4:18Mature love casts out fear, linking the certainty of salvation with perfected love.
- 5:11–12Eternal life is in the Son—the core assurance John writes to confirm.
- 5:13The stated purpose of the letter: that you may know you have eternal life.
People in this book
Questions for reflection
- ·How does 1 John 1:9 change your understanding of repentance and forgiveness? What role does confession play in your relationship with God?
- ·In chapter 2, John warns not to love the world. In your life, what forms of 'the desires of the flesh, the desires of the eyes, and the pride of life' (2:16) are challenging your devotion to God?
- ·John says 'God is love' (4:8). How does this definition reshape the way you view other people, especially those who are difficult to love?
- ·Verse 3:18 says 'let us not love in word or tongue, but in deed and in truth.' What specific action can you take this week to live out this verse?
- ·John presents 'overcoming the world' (5:4) as the fruit of faith. In your current circumstances, what do you need to face by faith rather than by sight?
Want to read 1 John start to finish? Open the reader for parallel Chinese/English text and ask anything as you go.
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Chapter 5
1Whosoever believeth that Jesus is the Christ is begotten of God: and whosoever loveth him that begat loveth him also that is begotten of him.
2Hereby we know that we love the children of God, when we love God and do his commandments.
3For this is the love of God, that we keep his commandments: and his commandments are not grievous.
4For whatsoever is begotten of God overcometh the world: and this is the victory that hath overcome the world, even our faith.
5And who is he that overcometh the world, but he that believeth that Jesus is the Son of God?
6This is he that came by water and blood, even Jesus Christ; not with the water only, but with the water and with the blood.
7And it is the Spirit that beareth witness, because the Spirit is the truth.
8For there are three who bear witness, the Spirit, and the water, and the blood: and the three agree in one.
9If we receive the witness of men, the witness of God is greater: for the witness of God is this, that he hath borne witness concerning his Son.
10He that believeth on the Son of God hath the witness in him: he that believeth not God hath made him a liar; because he hath not believed in the witness that God hath borne concerning his Son.
11And the witness is this, that God gave unto us eternal life, and this life is in his Son.
12He that hath the Son hath the life; he that hath not the Son of God hath not the life.
13These things have I written unto you, that ye may know that ye have eternal life, even unto you that believe on the name of the Son of God.
14And this is the boldness which we have toward him, that, if we ask anything according to his will, he heareth us:
15and if we know that he heareth us whatsoever we ask, we know that we have the petitions which we have asked of him.
16If any man see his brother sinning a sin not unto death, he shall ask, and God will give him life for them that sin not unto death. There is a sin unto death: not concerning this do I say that he should make request.
17All unrighteousness is sin: and there is a sin not unto death.
18We know that whosoever is begotten of God sinneth not; but he that was begotten of God keepeth himself, and the evil one toucheth him not.
19We know that we are of God, and the whole world lieth in the evil one.
20And we know that the Son of God is come, and hath given us an understanding, that we know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.
21My little children, guard yourselves from idols. amen.