3539. noeó
Lexical Summary
noeó: To perceive, to understand, to think, to consider

Original Word: νοέω
Part of Speech: Verb
Transliteration: noeó
Pronunciation: no-eh'-o
Phonetic Spelling: (noy-eh'-o)
KJV: consider, perceive, think, understand
NASB: understand, consider, perceive, see, think, understood
Word Origin: [from G3563 (νοῦς - mind)]

1. to exercise the mind (observe)
2. (figuratively) to comprehend, heed

Strong's Exhaustive Concordance
consider, perceive, think, understand.

From nous; to exercise the mind (observe), i.e. (figuratively) to comprehend, heed -- consider, perceive, think, understand.

see GREEK nous

HELPS Word-studies

3539 noiéō (from 3563 /noús, "mind") – properly, to apply mental effort needed to reach "bottom-line" conclusions. 3539 (noiéō) underlines the moral culpability we all have before God – for every decision (value-judgment) we make. This follows from each of us being created in the divine image – hence, possessing the inherent capacity by the Lord to exercise moral reasoning.

NAS Exhaustive Concordance
Word Origin
from nous
Definition
to perceive, think
NASB Translation
consider (1), perceive (1), see (1), think (1), understand (9), understood (1).

Thayer's Greek Lexicon
STRONGS NT 3539: νοέω

νοέω, νόω; 1 aorist ἐνόησα; (present passive participle (neuter plural) νωυμενα); (νοῦς); from Homer down; the Sept. for הַבִין and הִתְבּונֵן, and for הִשְׂכִּיל;

1. to perceive with the mind, to understand: absolutely, with the addition τῇ καρδία, John 12:40 (Isaiah 44:18); with an accusative of the thing, Ephesians 3:4, 20; 1 Timothy 1:7; passive: Romans 1:20; followed by ὅτι, Matthew 15:17; Matthew 16:11; Mark 7:18; followed by an accusative with an infinitive, Hebrews 11:3; the absolute equivalent to to have understanding: Matthew 16:9; Mark 8:17.

2. to think upon, heed, ponder, consider: ὀείτω, namely, let him attend to the events that occur, which will show the time to flee, Matthew 24:15; Mark 13:14; (similarly νόει (R G ) λέγω, 2 Timothy 2:7). (Compare: εὐνοέω, κατανοέω, μετανοέω, προνοέω, ὑπονοέω.)

Topical Lexicon
Root Idea of Thoughtful Perception

Strong’s 3539 centers on an inner act of thoughtful perception—grasping, considering, or discerning truth. It is not a shallow mental glance but an engaged, morally responsible apprehension that moves the heart and will.

Old Testament Background

In the Septuagint the same verb frequently renders Hebrew terms for “consider” or “understand” (for example, Deuteronomy 32:29; Isaiah 6:10). This establishes a link between genuine understanding and covenant obedience: to perceive is to answer God with faithfulness.

Usage in the Gospels

Jesus employs the term repeatedly to expose the dullness of His disciples (Matthew 15:17; 16:9, 11; Mark 7:18; 8:17). Their inability “to understand” shows how spiritual insight is hindered by hardened hearts, even in those who walk with the Lord. John 12:40 quotes Isaiah: “He has blinded their eyes and hardened their hearts, so that they cannot see with their eyes, and understand with their hearts, and turn, and I would heal them.” Here the verb underscores judicial blindness in the face of clear revelation.

The exhortation “let the reader understand” attached to Jesus’ eschatological warning (Matthew 24:15; Mark 13:14) makes comprehension a life-and-death matter. Spiritual alertness—not mere curiosity—prepares believers to act decisively when prophetic events unfold.

Pauline Development

Paul moves the word from the arena of dullness to the realm of revelation.
Ephesians 3:4: “By reading this, you will be able to understand my insight into the mystery of Christ.” Apostolic writing opens the believer’s mind to God’s long-hidden plan.
Ephesians 3:20: “Now to Him who is able to do immeasurably more than all we ask or imagine…” Here perception widens into adoration; the mind stretches toward God’s limitless power.
Romans 1:20 anchors human accountability: creation’s witness is “understood” by all, leaving the unbelieving “without excuse.”
1 Timothy 1:7 warns of would-be teachers who “do not understand what they are saying or what they so confidently assert,” while 2 Timothy 2:7 urges Timothy, “Consider what I am saying, for the Lord will give you insight into all things.” Sound doctrine depends on Spirit-given perception rather than speculative talking.

Hebrews and the Theology of Faith

Hebrews 11:3 locates understanding within faith itself: “By faith we understand that the universe was formed by God’s command.” The mind apprehends ultimate reality only when faith receives God’s Word as foundational fact.

Relation to Spiritual Blindness and Enlightenment

Across Scripture, failure to perceive is traced neither to intellectual deficiency nor to lack of data but to moral and spiritual resistance. Conversely, true perception is a gift bound to divine illumination (Luke 24:45; 1 Corinthians 2:12-16). The verb therefore stands at the intersection of revelation and responsibility.

Eschatological Alertness

The command to “understand” prophetic signs (Matthew 24:15; Mark 13:14) preserves believers from deception and panic. Insight fuels practical obedience—flight from danger, perseverance in trial, and confident hope in Christ’s return.

Pastoral Implications

• Preaching must aim beyond information, seeking Spirit-wrought comprehension.
• Discipleship nurtures hearts that “consider” rather than merely hear.
• Apologetics rests on the certainty that God’s self-revelation in creation and Scripture is intelligible to the honest mind.
• Prayer for enlightenment (Ephesians 1:17-18) is indispensable; only God “gives insight into all things” (2 Timothy 2:7).

Doctrinal Significance

Strong’s 3539 affirms the harmony of faith and reason. The biblical mind is neither anti-intellectual nor autonomous; it is regenerated, Spirit-taught, and joyfully submissive to divine truth. To “understand” in the New Testament sense is to enter the orbit of God’s redemptive purpose, perceiving reality as it truly is and living accordingly.

Forms and Transliterations
ενόησαν ενόησε ενόησεν ενόουσαν νοει νοεί νόει νοειτε νοείτε νοεῖτε νοειτω νοείτω νοησαι νοήσαι νοήσαί νοῆσαι νοήσατε νοήσει νοήση νοήσουσι νοήσουσιν νοήσωσι νοησωσιν νοήσωσιν νοουμεν νοούμεν νοοῦμεν νοουμενα νοούμενα νοουντες νοούντες νοοῦντες noei nóei noeite noeîte noeito noeitō noeíto noeítō noesai noêsai noēsai noē̂sai noesosin noēsōsin noḗsosin noḗsōsin nooumen nooûmen nooumena nooúmena noountes nooûntes
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Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Matthew 15:17 V-PIA-2P
GRK: οὐ νοεῖτε ὅτι πᾶν
NAS: Do you not understand that everything
KJV: ye yet understand, that whatsoever
INT: not yet understand you that everything

Matthew 16:9 V-PIA-2P
GRK: οὔπω νοεῖτε οὐδὲ μνημονεύετε
NAS: Do you not yet understand or remember
KJV: not yet understand, neither
INT: not yet Do you yet understand nor remember

Matthew 16:11 V-PIA-2P
GRK: πῶς οὐ νοεῖτε ὅτι οὐ
NAS: How is it that you do not understand that I did not speak
KJV: not understand that I spake
INT: How not understand you that not

Matthew 24:15 V-PMA-3S
GRK: ὁ ἀναγινώσκων νοείτω
NAS: place (let the reader understand),
KJV: (whoso readeth, let him understand:)
INT: (he who reads let him understand)

Mark 7:18 V-PIA-2P
GRK: ἐστε οὐ νοεῖτε ὅτι πᾶν
NAS: also? Do you not understand that whatever
KJV: not perceive, that
INT: are not Understand you that everything

Mark 8:17 V-PIA-2P
GRK: ἔχετε οὔπω νοεῖτε οὐδὲ συνίετε
NAS: Do you not yet see or
KJV: no bread? perceive ye not yet, neither
INT: you have not yet Do you perceive nor understand

Mark 13:14 V-PMA-3S
GRK: ὁ ἀναγινώσκων νοείτω τότε οἱ
NAS: not be (let the reader understand), then
KJV: (let him that readeth understand,) then
INT: he who reads let him understand then those

John 12:40 V-ASA-3P
GRK: ὀφθαλμοῖς καὶ νοήσωσιν τῇ καρδίᾳ
NAS: WITH THEIR EYES AND PERCEIVE WITH THEIR HEART,
KJV: nor understand with [their] heart,
INT: eyes and understand with the heart

Romans 1:20 V-PPM/P-NNP
GRK: τοῖς ποιήμασιν νοούμενα καθορᾶται ἥ
NAS: have been clearly seen, being understood through what has been made,
KJV: are clearly seen, being understood by the things that are made,
INT: by the things made being understood are understood the

Ephesians 3:4 V-ANA
GRK: δύνασθε ἀναγινώσκοντες νοῆσαι τὴν σύνεσίν
NAS: you can understand my insight
KJV: ye may understand my
INT: you are able reading [it] to understand the understanding

Ephesians 3:20 V-PIA-1P
GRK: αἰτούμεθα ἢ νοοῦμεν κατὰ τὴν
NAS: or think, according
KJV: or think, according to
INT: we ask or think according to the

1 Timothy 1:7 V-PPA-NMP
GRK: νομοδιδάσκαλοι μὴ νοοῦντες μήτε ἃ
NAS: to be teachers of the Law, even though they do not understand either
KJV: understanding neither
INT: law-teachers not understanding neither what

2 Timothy 2:7 V-PMA-2S
GRK: νόει ὃ λέγω
NAS: Consider what I say,
KJV: Consider what I say;
INT: Consider the things I say

Hebrews 11:3 V-PIA-1P
GRK: Πίστει νοοῦμεν κατηρτίσθαι τοὺς
NAS: By faith we understand that the worlds
KJV: Through faith we understand that the worlds
INT: By faith we understand to have been formed the

Strong's Greek 3539
14 Occurrences


νοῆσαι — 1 Occ.
νοήσωσιν — 1 Occ.
νόει — 1 Occ.
νοεῖτε — 5 Occ.
νοείτω — 2 Occ.
νοοῦμεν — 2 Occ.
νοούμενα — 1 Occ.
νοοῦντες — 1 Occ.

3538
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