What Does 2 Peter 3:17 Mean?
You therefore, beloved, since you know these things beforehand, guard yourselves, lest you also, carried off by the wandering of the lawless, fall from your own steadiness.
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
Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.THE KEY
The danger is not merely being wrong; it is being carried along until you fall away from the firm support beneath you.
THE MEANING
You already know enough to recognize the pull of wandering error, but knowing does not make you immovable. You can be swept along with what has no stable footing and fall away from the ground on which you stand. The warning speaks to the moment before drift becomes a fall.
WHAT THIS UNDOES
The lie this verse undoes is that understanding a danger once makes you immune to being carried off course.
THE ROOT
πλάνῃ
planē
GROWS FROM
πλαν-
plan-
To wander or stray.
“Error” can sound like a wrong conclusion, but πλάνη (planē, wandering or straying) carries movement in it. Here the danger is being carried along in another’s wandering until you fall away from your firm support.
ALSO GROWS
planáō: To wander or lead astray.
πλανάω
This verb makes the movement explicit: error can draw someone away from their course.
planḗtēs: A wanderer; one who strays.
πλανήτης
The same word family describes a person in motion without a fixed course, echoing the warning about being led away.
στηριγμοῦ
stērigmoû
GROWS FROM
στηριγ-
stērig-
A support or prop; something made firm.
“steadiness” in this verse is stērigmoû. The word translated “stedfastness” carries the sense of firm support, not just an inner quality. To fall from it is to lose the footing on which you are standing. The same word family appears where the reader is described as being established in what is known.
ALSO GROWS
stērízō: To set firm, establish, or strengthen.
στηρίζω
This verb shows that steadfastness is the result of being made firm, not merely a claim of certainty.
epistērízō: To strengthen or support.
ἐπιστηρίζω
This related verb makes the supporting action visible: firmness is something held up and reinforced.
φυλάσσεσθε
phylássesthe
GROWS FROM
φυλασσ-
phylass-
To guard or keep watch.
“Beware” can sound like an inward feeling of concern; φυλάσσεσθε (phylássesthe, keep watch or guard yourselves) pictures active watchfulness. That watch stands at the point where wandering could begin, before it becomes a fall.
ALSO GROWS
phylakḗ: A guard or watch; also a guarded place or prison.
φυλακή
The word shows the root’s connection to keeping watch and holding a boundary.
phýlax: A guard or watchman.
φύλαξ
The related noun gives the action a watcher: guarding means attending to what might carry you away.
THE PATTERN
Firm footing is preserved through attention before drift becomes a fall.
Level the track of your feet, and let all your ways stand firm.For this reason, we must hold ourselves all the more toward the things we have heard, lest we ever drift away from them.So let the one who thinks he stands watch, lest he fall.THE THREAD
Therefore I will not hold back from reminding you always of these things, though you know them and are made steady in the truth at hand.“Be established” is στηρίζω (stērízō, set firm or establish), from the same word family as στηριγμός (stērigmós, firm support), translated “stedfastness” here. Knowing and being established belong together: what is already known remains something the reader is being made firm in, not a guarantee against being carried away.
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