King James Version

What Does 1 John 5:21 Mean?

1 John 5:21 in the King James Version says “Little children, keep yourselves from idols. Amen.” — study this verse from 1 John chapter 5 with commentary, cross-references, and original Greek word analysis.

“Little children, keep yourselves from idols. Amen.”

1 John 5:21 · KJV

Context

19

And we know that we are of God, and the whole world lieth in wickedness.

20

And we know that the Son of God is come, and hath given us an understanding, that we may 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.

21

Little children, keep yourselves from idols. Amen.

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Commentary

KJV Study Commentary
Little children, keep yourselves from idols. Amen. John concludes with urgent warning. "Little children" (teknia) is his affectionate address throughout the letter, emphasizing pastoral care. "Keep yourselves from idols" (phylaxate heauta apo tōn eidōlōn). Phylassō (φυλάσσω) means to guard, protect, or keep watch. The command is present imperative indicating continuous vigilance. Eidōlon (εἴδωλον) means idol—false gods, images, or anything usurping God's rightful place.

This abrupt ending may seem disconnected from the previous verse's lofty Christology, but the connection is clear: having affirmed Jesus Christ as the true God and eternal life, John warns against anything false. Idols are antithetical to the true God. This includes literal pagan idols (prevalent in first-century Asia Minor) and any substitute for God—wealth, pleasure, status, even religious systems that distort Christ's identity or require anything besides faith in Him alone for salvation.

The warning is corporate ("yourselves") and individual—each believer must actively guard against idolatry. This isn't passive avoidance but active vigilance. Given human proclivity toward idolatry (exchanging God's glory for created things, Romans 1:23), constant watchfulness is necessary. The letter that began affirming Christ's incarnation and life (1:1-4) ends warning against idols—maintain exclusive devotion to Jesus Christ, the true God, rejecting all counterfeits. "Amen" confirms the certainty and importance of all that preceded.

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Historical & Cultural Context

First-century believers faced literal idol worship everywhere—temples, public ceremonies, marketplace meat offered to idols (1 Corinthians 8). Leaving paganism for Christianity meant dramatic break from surrounding culture's religious practices. This made idolatry a constant temptation and danger. Paul similarly warned Corinthian and Ephesian believers about idolatry (1 Corinthians 10:14, Ephesians 5:5, where covetousness is called idolatry).

Beyond literal idols, any false teaching about Christ functions as idolatry—worshiping a false Christ. The Gnostic teaching John combated throughout the epistle was sophisticated idolatry, replacing the true Christ with counterfeit. Today's idols may be less obviously religious but equally dangerous—materialism, self-worship, political ideology, even ministry or family elevated above God. John's final command remains perpetually relevant: guard yourselves from idols, maintaining exclusive devotion to Jesus Christ, the true God and eternal life.

Reflection Questions

  1. What subtle idols in your life (things, people, ambitions, or ideas) compete with Jesus Christ for supreme devotion?
  2. How can you actively 'keep yourself' from idols rather than passively assuming you're immune to idolatry?
  3. Why would John conclude a letter emphasizing love and assurance with this stark warning against idols, and what does this say about idolatry's danger?

Original Language Analysis

Greek · 7 words
Τεκνία,1 of 7

“Little children”

G5040

an infant, i.e., (plural figuratively) darlings (christian converts)

φυλάξατε2 of 7

“keep”

G5442

to watch, i.e., be on guard (literally of figuratively); by implication, to preserve, obey, avoid

ἑαυτοὺς3 of 7

“yourselves”

G1438

(him- her-, it-, them-, my-, thy-, our-, your-)self (selves), etc

ἀπὸ4 of 7

“from”

G575

"off," i.e., away (from something near), in various senses (of place, time, or relation; literal or figurative)

τῶν5 of 7
G3588

the (sometimes to be supplied, at others omitted, in english idiom)

εἰδώλων6 of 7

“idols”

G1497

an image (i.e., for worship); by implication, a heathen god, or (plural) the worship of such

ἀμήν7 of 7

“Amen”

G281

properly, firm, i.e., (figuratively) trustworthy; adverbially, surely (often as interjection, so be it)

Study Guide

Historical Context

This verse is found in the book of 1 John. Understanding the historical and cultural background helps illuminate its meaning for the original audience and for us today.

Theological Significance

1 John 5:21 contributes to our understanding of God's character and His relationship with humanity. Consider how this verse connects to the broader themes of Scripture.

Cross-References

Verses related to 1 John 5:21 from Treasury of Scripture Knowledge

1 Corinthians 10:141 Corinthians 10:7Exodus 20:3-42 Corinthians 6:16-171 Thessalonians 1:9Revelation 9:20

Test Your Knowledge

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