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Greek verb · G2657

κατανοέω

katanoeokat-an-o-eh'-o

to observe

14 uses in the Greek text, one for each word STEP Bible has tagged with this key

Concordance spelling: katanoéō

Word page · Part of the concordance, one page for every word of the Hebrew and Greek text. Strong's G2657is this word's number in James Strong's 1890 index of the King James Bible.

  • 6 of 27
    New Testament books
  • 8
    spellings

The definition in full

Strong's key (1890) · G2657

to observe fully

The King James renders it: behold, consider, discover, perceive.

James Strong, The Exhaustive Concordance of the Bible (1890), public domain. Strong indexed the King James text, and this site quotes his entry as that index.

Summary

katanoeo is rendered "to observe". It stands 14 times in the Greek text, across six books.

  • Four of the uses stand in Luke, more than in any other book.
  • Its first use in canonical order opens the ledger below.Matthew 7:3Why do you look at the speck in your brother’s eye, but fail to notice the beam in your own eye?
  • The Greek text spells it eight different ways.

The first use

Why do you look at the speck in your brother’s eye, but fail to notice the beam in your own eye?

Matthew 7:3κατανοεῖς

The first use, in the order of the New Testament's books.

Where the word stands

Four of the word's fourteen uses are in Luke.

The other 21 New Testament books never use the word.

What the word means

Each meaning, and the words it is translated by

How the Greek text is glossed, word by word

  • do consider2
  • notice2
  • do carefully consider1
  • having perceived1
  • he considered1
  • he has viewed1
  • I was observing1
  • looking1
  • they were noticing1
  • to behold1
  • to look1
  • we may think1

The words built on the same word-part

Each word below begins with the same letters this one begins with. A shared word-part shows a family. It does not settle what any one of them means, so each word carries its own uses on its own page. Scholars call that shared part the stem.

καταβαίνωkatabainoto come/go downUses81
καταργέωkatargeoto abateUses27
καταλείπωkataleipoto leave behindUses23
καταλύωkatalyoto destroy/lodgeUses17
καταγγέλλωkatangelloto proclaimUses17
κατακρίνωkatakrinoto condemnUses15
καταντάωkatantaoto come toUses13
καταρτίζωkatartizoto completeUses13
καταισχύνωkataischynoto dishonorUses13
καταλαμβάνωkatalambanoto graspUses13
κατακαίωkatakaioto burnUses12
κατάκειμαιkatakeimaito reclineUses12

and 102 more on the stem.

All 14, in canonical order

Every use, in order

Every use, grouped by book, with its verse.

8 spellings and their grammar

STEP Bible tags every word of the Hebrew and Greek text with its spelling and its grammar. Both lists below count the rows printed underneath, written out in English, with the code beside each one as it was tagged.

How it is spelled

  • κατανοήσατε3
  • κατανοεῖς2
  • κατανοῆσαι2
  • κατενόησεν2
  • κατενόουν2
  • κατανοήσας1
  • κατανοοῦντι1
  • κατανοῶμεν1

The grammar of each form

  • verb · aorist active, command · 2nd person plural3V-AAM-2P
  • verb · aorist active, indicative · 3rd person singular2V-AAI-3S
  • verb · aorist active, infinitive (“to…”)2V-AAN
  • verb · present active, indicative · 2nd person singular2V-PAI-2S
  • verb · aorist active, participle · nominative (subject) · masculine singular1V-AAP-NSM
  • verb · imperfect active, indicative · 1st person singular1V-IAI-1S
  • verb · imperfect active, indicative · 3rd person plural1V-IAI-3P
  • verb · present active, participle · dative (“to / for”) · masculine singular1V-PAP-DSM
  • verb · present active, subjunctive · 1st person plural1V-PAS-1P

Matthew

one use
  • Why do you look at the speck in your brother’s eye, but fail to notice the beam in your own eye?

    Matthew 7:3

    • κατανοεῖςkatanoeisverb · present active, indicative · 2nd person singulartagged: notice

Luke

four uses
  • Why do you look at the speck in your brother’s eye, but fail to notice the beam in your own eye?

    Luke 6:41

    • κατανοεῖςkatanoeisverb · present active, indicative · 2nd person singulartagged: notice
  • Consider the ravens: They do not sow or reap, they have no storehouse or barn; yet God feeds them. How much more valuable you are than the birds!

    Luke 12:24

    • κατανοήσατεkatanoesateverb · aorist active, command · 2nd person pluraltagged: do consider
  • Consider how the lilies grow: They do not labor or spin. Yet I tell you, not even Solomon in all his glory was adorned like one of these.

    Luke 12:27

    • κατανοήσατεkatanoesateverb · aorist active, command · 2nd person pluraltagged: do consider
  • But Jesus saw through their duplicity and said to them,

    Luke 20:23

    • κατανοήσαςkatanoesasverb · aorist active, participle · nominative (subject) · masculine singulartagged: having perceived

Acts

four uses
  • When Moses saw it, he marveled at the sight. As he approached to look more closely, the voice of the Lord came to him:

    Acts 7:31

    • κατανοῆσαιkatanoesaiverb · aorist active, infinitive (“to…”)tagged: to behold
  • ‘I am the God of your fathers, the God of Abraham, Isaac, and Jacob.’ Moses trembled with fear and did not dare to look.

    Acts 7:32

    • κατανοῆσαιkatanoesaiverb · aorist active, infinitive (“to…”)tagged: to look
  • I looked at it closely and saw four-footed animals of the earth, wild beasts, reptiles, and birds of the air.

    Acts 11:6

    • κατενόουνkatenoounverb · imperfect active, indicative · 1st person singulartagged: I was observing
  • When daylight came, they did not recognize the land, but they sighted a bay with a sandy beach, where they decided to run the ship aground if they could.

    Acts 27:39

    • κατενόουνkatenoounverb · imperfect active, indicative · 3rd person pluraltagged: they were noticing

Romans

one use
  • Without weakening in his faith, he acknowledged the decrepitness of his body (since he was about a hundred years old) and the lifelessness of Sarah’s womb.

    Romans 4:19

    • κατενόησενkatenoesenverb · aorist active, indicative · 3rd person singulartagged: he considered

Hebrews

two uses
  • Therefore, holy brothers, who share in the heavenly calling, set your focus on Jesus, the apostle and high priest whom we confess.

    Hebrews 3:1

    • κατανοήσατεkatanoesateverb · aorist active, command · 2nd person pluraltagged: do carefully consider
  • And let us consider how to spur one another on to love and good deeds.

    Hebrews 10:24

    • κατανοῶμενkatanoomenverb · present active, subjunctive · 1st person pluraltagged: we may think

James

two uses
  • For anyone who hears the word but does not carry it out is like a man who looks at his face in a mirror,

    James 1:23

    • κατανοοῦντιkatanoountiverb · present active, participle · dative (“to / for”) · masculine singulartagged: looking
  • and after observing himself goes away and immediately forgets what he looks like.

    James 1:24

    • κατενόησενkatenoesenverb · aorist active, indicative · 3rd person singulartagged: he has viewed

Where it leads

How the numbers are counted

Every count on this page comes from STEP Bible's tagged Hebrew and Greek text, the same text the ledger prints. A use is counted once each time the tagging marks a word with this key.

Spellings are counted as the Greek text spells them, with the sentence's own punctuation taken off the word first, so a form that ends a clause is not counted as a second spelling.

The family is read from the lexicon by the stem the two words share, with the accents off, and a person or a place named on the stem is left out.

Hebrew and Greek text, word tagging and grammar: STEP Bible (www.STEPBible.org), Tyndale House, CC BY 4.0. Their grammar codes are written out in English here and shown as tagged beside each one.

Meaning and senses: STEP Bible TBESG (Tyndale House, CC BY 4.0), the Brief lexicon based on Abbott-Smith (1922).

Dictionary key: Strong's Exhaustive Concordance of the Bible (1890, public domain). English verse text: Berean Standard Bible (public domain, 2023).

Revised 2026-09-05. Every cited work, the sources registry →