What Does 1 Thessalonians 5:21 Mean?
Test everything, and hold fast to what is good.
Key words are shown with the Hebrew or Greek and what each word meant.
Selah Decoded Version The Selah Decoded Version renders what the Hebrew and Greek words meant to the people who first heard them.
King James wording
King James Version
Prove all things; hold fast that which is good.THE KEY
The Greek “prove” is a test that reveals what is genuine, and “hold fast” is what follows when the good survives.
THE MEANING
A claim, impulse, or teaching does not become good merely by arriving; it can be examined. What proves good is kept close, so discernment makes room both for testing and for lasting attachment.
WHAT THIS UNDOES
It undoes the belief that discernment requires distrusting everything: the verse joins wide examination with firm attachment to what proves good.
THE ROOT
δοκιμάζετε
dokimazete
GROWS FROM
δοκιμ-
dokim-
Test by examining whether something is genuine, and approve what stands.
English “prove” can sound like demonstrating a proposition. This Greek word also describes testing something to see whether it is genuine and fit for approval; its word family names both the test and the proven character that results.
ALSO GROWS
dokimē: The quality of having been tested and shown genuine.
δοκιμή
In Romans 5:4, the KJV renders this word “experience”; it shows the proven character that can follow testing.
dokimos: Someone or something recognized as having passed the test.
δόκιμος
In Romans 16:10, the KJV calls Apelles “approved in Christ”; the branch names what the test finds worthy of approval.
κατέχετε
katechete
GROWS FROM
ἔχω (echō), within κατέχω (katechō)
ἔχω means “have” or “hold”; κατέχω combines it with κατά (kata) to mean “hold fast,” “retain,” or, in another context, “hold back.”
“hold fast” in this verse is katechete. The phrase is more than a verdict that something is good: it names keeping hold of what passes the test. The same verb can describe retaining or holding something back, so the context determines what is kept; here, it is what is good.
ALSO GROWS
echō: To have or hold something.
ἔχω
This is the base verb inside κατέχω; what is held fast remains something possessed, not merely judged.
metechō: To have a share in something.
μετέχω
This compound uses the same ἔχω base; what is retained can become something a person continues to share in.
synechō: To hold together or press upon.
συνέχω
This compound also carries the sense of holding; it helps show that κατέχετε describes continued grip, not a passing approval.
THE PATTERN
Discernment tests what arrives, then holds on to what proves trustworthy.
O taste and see that the LORD is good. Flourishing is the strong one who takes shelter in him.These were of nobler birth than those in Thessalonica, who received the word with all eagerness of heart, and sifted the writings daily, whether these things held so.Beloved, do not lean your weight on every breath, but test the breaths, whether they come out of God, for many false prophets have gone out into the world.THE THREAD
Do not take the shape of this age, but be reshaped by the renewing of your mind, so that you may test what is the good, well-pleasing, and complete will of God.“Prove” is the same Greek testing verb used in 1 Thessalonians 5:21. Here the test identifies what is good, acceptable, and perfect, opening out how examination leads to holding fast to what proves good.
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