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1 John4

The chapter exhorts believers to test spirits, distinguishing true prophets who confess Jesus Christ in the flesh from false ones. It then emphasizes that God is love, and His love was manifested by sending His Son as propitiation for sins. Consequently, believers are commanded to love one another, for genuine love for God is inseparable from love for one's brother, and perfect love casts out fear.
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Test the Spirits

1
Beloved, do not believe every spirit, but test the spirits to see whether they are from God. For many false prophets have gone out into the world. ​
2
By this you will know the Spirit of God: Every spirit that confesses that Jesus Christ has come in the flesh is from God, ​
3
and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and which is already in the world at this time. ​
4
You, little children, are from God and have overcome them, because greater is He who is in you than he who is in the world. ​
5
They are of the world. That is why they speak from the world’s perspective, and the world listens to them.
6
We are from God. Whoever knows God listens to us; whoever is not from God does not listen to us. That is how we know the Spirit of truth and the spirit of deception. ​

God Is Love

7
Beloved, let us love one another, because love comes from God. Everyone who loves has been born of God and knows God. ​
8
Whoever does not love does not know God, because God is love. ​
9
This is how God’s love was revealed among us: God sent His one and only Son into the world, so that we might live through Him. ​
10
And love consists in this: not that we loved God, but that He loved us and sent His Son as the atoning sacrifice for our sins. ​
11
Beloved, if God so loved us, we also ought to love one another. ​
12
No one has ever seen God; but if we love one another, God remains in us, and His love is perfected in us. ​

Assurance Through the Spirit

13
By this we know that we remain in Him, and He in us: He has given us of His Spirit. ​
14
And we have seen and testify that the Father has sent His Son to be the Savior of the world. ​
15
If anyone confesses that Jesus is the Son of God, God abides in him, and he in God.
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And we have come to know and believe the love that God has for us. God is love; whoever abides in love abides in God, and God in him. ​

Perfect Love Casts Out Fear

17
In this way, love has been perfected among us, so that we may have confidence on the day of judgment; for in this world we are just like Him. ​
18
There is no fear in love, but perfect love drives out fear, because fear involves punishment. The one who fears has not been perfected in love. ​

The Basis and Proof of Love

19
We love because He first loved us. ​
20
If anyone says, “I love God,” but 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. ​
21
And we have this commandment from Him: Whoever loves God must love his brother as well. ​

Study Notes for 1 John 4

Verse 1

John warns against the influence of Gnostic-like heresy prevalent in the region, where teachers claimed special, secret knowledge. The test provided is theological, demanding discernment because many false prophets have arisen.

Verse 2

The critical test is the confession of the Incarnation—that Jesus Christ actually took on human flesh. This statement directly refutes the Docetic heresy, which claimed Christ only *seemed* to be human.

Verse 3

The 'spirit of antichrist' refers to any teaching that denies the full humanity and divinity of Christ. John emphasizes that this rebellious spirit is already active in the world, not just a future threat.

Verse 4

John assures the believers of their victory. The 'greater He' is the Holy Spirit dwelling within them, providing the power needed to overcome the influence of the false teachers ('he that is in the world,' referring to Satan or the spirit of error).

Verse 6

This provides the practical application of the test: true believers (those who know God) heed the authentic apostolic teaching, while those who follow the spirit of error reject it.

Verse 7

John transitions from the doctrinal test (Christology) to the ethical test (love). Love is not merely an emotion but the essential nature of God, which must be manifested in the life of the regenerate believer.

Verse 8

This is one of the most profound theological statements in Scripture: *God is love* (Agape). If a person does not manifest sacrificial love, they cannot truly know the essence or nature of God.

Verse 9

God's love is demonstrated not by feeling but by action—sending Jesus Christ. The Incarnation and subsequent sacrifice were the means by which God provided eternal life (salvation) for humanity.

Verse 10

True love is defined by God’s initiative, not ours. *Propitiation* (atoning sacrifice) signifies that Christ’s death satisfied God’s righteous wrath against sin, reconciling humanity to God.

Verse 11

The vertical relationship (God's love for us) mandates the horizontal relationship (our love for one another). This is the key ethical implication of the Gospel.

Verse 12

While no one has seen God in His essence, the invisible God becomes visible through the community of believers loving each other. This 'perfects' (brings to completion or maturity) His love in us.

Verse 13

John provides the third key assurance: the gift of the Holy Spirit. The indwelling Spirit is the internal confirmation that believers abide in God and God in them.

Verse 14

John appeals to the apostolic testimony ('we have seen and do testify') regarding the historical reality of Jesus as the Savior. This links the ethical theme of love back to the Christological foundation.

Verse 16

This reiterates the core theological truth ('God is love') and ties it directly to the concept of abiding. To dwell in love is synonymous with dwelling in God.

Verse 17

When love is 'made perfect' (fully developed and mature), it grants confidence regarding the future judgment. Our assurance rests on the fact that we are already like Christ in our standing before God.

Verse 18

Fear here refers to the dread of punishment or condemnation stemming from guilt. Mature, assured love eliminates this paralyzing fear because the believer knows they are reconciled to God through Christ.

Verse 19

This summarizes the Christian motivation for love: it is a response to God's prior, initiating grace. We cannot generate love apart from receiving His love first.

Verse 20

This verse presents a forceful, practical syllogism. Hatred toward a visible brother proves the claim of loving the invisible God to be false, as love for God must be demonstrated toward His visible creation.

Verse 21

John concludes this section by affirming that loving one's brother is not optional but an explicit commandment received from God Himself, uniting the two great commandments (love God and love neighbor).

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