King James Version

What Does 1 Thessalonians 5:21 Mean?

1 Thessalonians 5:21 in the King James Version says “Prove all things; hold fast that which is good.” — study this verse from 1 Thessalonians chapter 5 with commentary, cross-references, and original Greek word analysis.

“Prove all things; hold fast that which is good.”

1 Thessalonians 5:21 · KJV

Context

19

Quench not the Spirit.

20

Despise not prophesyings.

21

Prove all things; hold fast that which is good.

22

Abstain from all appearance of evil.

23

And the very God of peace sanctify you wholly; and I pray God your whole spirit and soul and body be preserved blameless unto the coming of our Lord Jesus Christ.

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Commentary

KJV Study Commentary
Prove all things; hold fast that which is good—panta dokimazete, to kalon katechete (πάντα δοκιμάζετε, τὸ καλὸν κατέχετε). Dokimazō (δοκιμάζω, 'to test, examine, prove') means careful scrutiny, like testing metals for purity or coinage for genuineness. Panta (πάντα, 'all things') includes prophecies (v. 20) and all spiritual claims. Don't despise prophecy (v. 20) but don't accept uncritically—test everything. To kalon katechete (τὸ καλὸν κατέχετε, 'hold fast the good')—katechō (κατέχω) means 'to hold firmly, retain tenaciously.' After testing, cling to what proves genuine; reject what fails testing.

This command balances vv. 19-20 (openness to Spirit's work) with discernment. Testing criteria include: (1) conformity to Scripture (Acts 17:11; Isa 8:20), (2) exaltation of Christ (1 Cor 12:3), (3) edification of church (1 Cor 14:3-4), (4) character of prophet (Matt 7:15-20), (5) fulfillment of predictions (Deut 18:21-22). Bereans modeled this: they 'received the word with all readiness of mind, and searched the scriptures daily, whether those things were so' (Acts 17:11). Openness plus discernment produces healthy church; openness without discernment produces chaos; discernment without openness quenches the Spirit.

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Historical & Cultural Context

The apostolic church faced both cessationists (despising prophecy) and fanatics (accepting all spiritual claims uncritically). Paul charts middle course: eagerly desire spiritual gifts (1 Cor 14:1), don't forbid speaking in tongues (1 Cor 14:39), but test everything (1 Thess 5:21), let all things be done decently and in order (1 Cor 14:40). This balance has challenged churches throughout history. Medieval Catholicism increasingly suppressed charismatic gifts through institutionalization; Radical Reformation sometimes abandoned discernment through naive acceptance. Reformed tradition emphasized testing but sometimes quenched the Spirit; Pentecostal tradition emphasized openness but sometimes lacked discernment.

Reflection Questions

  1. What biblical criteria do you use to 'test all things' (especially prophetic utterances and spiritual claims)?
  2. How do you balance eager openness to the Spirit's work with careful discernment to avoid both extremes?
  3. What evidence demonstrates that you're 'holding fast' what proved good after testing rather than remaining perpetually skeptical?

Original Language Analysis

Greek · 5 words
πάντα1 of 5

“all things”

G3956

all, any, every, the whole

δοκιμάζετε2 of 5

“Prove”

G1381

to test (literally or figuratively); by implication, to approve

τὸ3 of 5

“that which”

G3588

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

καλὸν4 of 5

“is good”

G2570

properly, beautiful, but chiefly (figuratively) good (literally or morally), i.e., valuable or virtuous (for appearance or use, and thus distinguished

κατέχετε5 of 5

“hold fast”

G2722

to hold down (fast), in various applications (literally or figuratively)

Study Guide

Historical Context

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

Theological Significance

1 Thessalonians 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 Thessalonians 5:21 from Treasury of Scripture Knowledge

1 John 4:1Romans 12:2Ephesians 5:10Luke 12:57Acts 17:11Romans 12:9

Test Your Knowledge

1 Thessalonians 5 QuizTest your knowledge of this chapter1 Thessalonians Book QuizComprehensive quiz for the entire book

Continue Your Study

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