English · KJV
G1492

εἴδω

eídō /i'-do/ Ask about this word
Roota primary verb
Meaningused only in certain past tenses, the others being borrowed from the equivalent ὀπτάνομαι and ὁράω; properly, to see (literally or figuratively); by implication, (in the perfect tense only) to know
KJV usagebe aware, behold, X can (+ not tell), consider, (have) know(-ledge), look (on), perceive, see, be sure, tell, understand, wish, wot. Compare ὀπτάνομαι.

Word Study

In depth

A plain-language study of eídō — the range of meaning it carries, how Scripture actually uses it, and where it points. Written for readers who don’t know the original language.

Core Meaning & Semantic Range

The Greek word eídō, represented by G1492, is a primary verb that means to see (literally or figuratively) and, by implication, to know. It appears 692 times in 626 unique verses, making it a crucial term in the New Testament. Its meaning ranges from physical sight to a deeper, more certain knowledge and understanding.

The Greek word G1492 (eídō), particularly in its common perfect form oida (I have seen, hence I know), carries an inherent sense of immediate apprehension rather than a gradual acquisition of knowledge. Its etymological root often points to a direct perception or a state of having seen, which naturally leads to a settled and confident understanding. This distinguishes it from other verbs of knowing by emphasizing an intuitive, often unmediated grasp of truth or fact, a "seeing-as-knowing" that bypasses a laborious learning process.

This directness makes G1492 a powerful term for expressing certainty. It denotes a mental state of clear awareness, where something has been perceived distinctly enough to constitute undeniable knowledge. When used in questions, G1492 often serves to underscore foundational truths or to challenge a perceived lack of understanding within a community. For instance, Paul frequently employs the rhetorical question, "Know ye not?" 1 Corinthians 3:16, 1 Corinthians 5:6, 1 Corinthians 6:2, 1 Corinthians 6:3, 1 Corinthians 6:9, 1 Corinthians 6:15, 1 Corinthians 6:16, 1 Corinthians 6:19, 1 Corinthians 9:13, 1 Corinthians 9:24, to appeal to a shared, established knowledge among believers, reinforcing their identity and responsibilities.

Biblical Occurrences & Contextual Analysis

In scripture, G1492 is used to convey both literal seeing and figurative knowing. It can describe a physical observation, such as John's vision of a great multitude in heaven Revelation 7:9. More often, it expresses a state of confident knowledge or assurance in God's promises, as in the declaration, "we know that all things work together for good" Romans 8:28. The word also defines spiritual perception, where seeing is equated with understanding; Jesus states that one must be born again to "see the kingdom of God" John 3:3. Conversely, a lack of this spiritual sight is described as not knowing, as when Jesus prayed for his crucifiers, "for they know not what they do" Luke 23:34.

Beyond general seeing and knowing, G1492 is frequently employed to articulate the divine foreknowledge and comprehensive awareness of Jesus Christ. He often uses the term to express his inherent understanding of events and the inner states of individuals, signifying a knowledge that transcends human perception. For example, Jesus "knew" from the beginning who would betray him John 6:64, and he "knew all things that should come upon him" before his arrest John 18:4, demonstrating an intrinsic, divine insight into the unfolding of God's plan. This contrasts sharply with human limitations, as when the disciples confessed, "we cannot tell what he saith" John 16:18, or when Mary did not "know that it was Jesus" after the resurrection John 20:14.

The word also serves to describe moments of profound divine revelation experienced by individuals through visions or direct encounters. Paul, recounting his conversion, states he "saw in the way a light from heaven" Acts 26:13 and was chosen to "see that Just One" Acts 22:14, indicating a direct, visual apprehension of spiritual reality that transformed his understanding and mission. Similarly, Peter's pivotal vision concerning the Gentiles is described as him "seeing a vision" Acts 10:3, Acts 11:5, which led to a new theological insight. These instances highlight G1492's capacity to convey a direct, revelatory form of perception that leads to a deeper spiritual knowledge and action.

Related Words & Concepts

Several related words clarify the nuanced meanings of seeing and knowing:

  • G1097 ginṓskō: This verb means to "know" (absolutely). It often implies a knowledge gained through experience or relationship, which differs from the perceptual knowledge of eídō. In 1 John 5:20, believers are given understanding to know G1097 him that is true.
  • G3708 horáō: This word means to discern clearly, either physically or mentally. It can imply a more intentional or focused sight than the more passive vision of eídō. This distinction is visible in 1 Peter 1:8, where believers love one whom they have not seen G1492, and though they do not see G3708 him now, they still believe.
  • G991 blépō: Meaning "to look at," this word often refers to the physical act of seeing. In Mark 4:12, a prophecy is fulfilled where people are "seeing they may see G991, and not perceive G1492," highlighting the difference between physical sight and true spiritual comprehension.
  • G1491 eîdos (form, appearance): As the cognate noun, G1491 denotes the outward form, shape, or appearance that is perceived, representing the tangible aspect of what G1492 apprehends, whether visually or conceptually.
  • G1497 eídōlon (idol, image): This term, derived from G1491, refers to an image or phantom, often specifically an idol. It represents a deceptive appearance or a false object of worship, thus denoting a distorted or misplaced "seeing" and "knowing" of ultimate reality.

Theological Significance

The theological weight of G1492 is significant, particularly in how it defines a believer's relationship with God.

  • Assurance of Faith: The term is frequently used to express the believer's certainty. Paul's confidence is rooted in this knowledge: "for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him" 2 Timothy 1:12. This assurance is a hallmark of the Christian life 1 John 5:13.
  • Spiritual Perception: G1492 is central to the concept of spiritual sight given by God. The ability to "know" the hope of His calling comes from having the "eyes of your understanding being enlightened" Ephesians 1:18. This contrasts sharply with spiritual blindness, where people cannot see or perceive divine truth John 12:40.
  • Divine Omniscience: The word is also used to describe God's perfect knowledge. The risen Christ declares to the churches, "I know thy works" (Revelation 2:2, Revelation 3:8, Revelation 3:15), indicating His complete awareness of their spiritual state. God "knoweth what is the mind of the Spirit" because he searches the hearts Romans 8:27.
  • Eschatological Hope and Vision: G1492 plays a vital role in articulating the believer's future hope of ultimate vision. John assures believers that "we know that, when he shall appear, we shall be like him; for we shall see him as he is" 1 John 3:2. This promise of direct, unmediated sight of Christ in His glory is a profound aspect of Christian eschatology, inspiring steadfastness and longing. The desire of apostles to "see your face" 1 Thessalonians 2:17, 1 Thessalonians 3:10, 2 Timothy 1:4, 3 John 1:14 also reflects a deep longing for direct, personal fellowship that mirrors this ultimate spiritual vision.
  • Knowledge and Moral Accountability: The act of "knowing" through G1492 frequently carries significant ethical and moral implications, establishing responsibility for one's actions. Paul warns against behavior that might cause a brother to stumble, particularly if that brother "see thee which hast knowledge sit at meat in the idol's temple" 1 Corinthians 8:10, demonstrating how one's perceived actions can impact others. This ethical dimension is further emphasized by James, who states, "to him that knoweth to do good, and doeth it not, to him it is sin" James 4:17, thereby linking possessed knowledge directly to moral obligation and accountability before God.
  • The Spirit as the Source of True Knowledge: Crucially, G1492 is often presented as knowledge that originates from and is enabled by the Holy Spirit. Paul clarifies that "the things of God knoweth no man, but the Spirit of God," and that believers have received the Spirit "that we might know the things that are freely given to us of God" 1 Corinthians 2:11, 1 Corinthians 2:12. This highlights that genuine spiritual understanding and perception, a profound G1492 knowledge of divine truth, is not naturally acquired but is a sovereign gift imparted by the indwelling Spirit, illuminating the "eyes of your understanding" Ephesians 1:18.

Summary

The Greek word G1492 (eídō) stands as a foundational term in the New Testament, signifying far more than mere physical observation. Rooted in an ancient sense of immediate apprehension, it describes a state of having perceived so clearly that one possesses certain knowledge. This "seeing-as-knowing" encompasses a broad semantic range, from literal sight, such as witnessing a miracle John 6:14, to a deep, intuitive understanding of spiritual realities. It often expresses a direct, factual awareness, distinct from knowledge gained through prolonged experience, and is frequently employed in rhetorical questions to affirm or challenge a community's shared understanding of fundamental truths.

Biblically, G1492 is central to understanding divine omniscience, as seen in Jesus' inherent knowledge of future events and the hearts of men John 6:64. Conversely, it highlights human limitation and spiritual ignorance when people fail to grasp divine truths or admit their lack of understanding John 16:18. The term also describes the reception of divine revelation through visions, where spiritual sight leads to transformative knowledge and commission Acts 22:14. The theological weight of G1492 is profound, underpinning the assurance of faith, the spiritual perception granted by God, and the certainty of a believer's relationship with Him.

G1492 shapes the Christian's eschatological hope, promising a future, unmediated vision of Christ in glory 1 John 3:2. It carries significant moral implications, holding believers accountable for the good they "know" to do James 4:17 and the impact of their "seen" actions on others 1 Corinthians 8:10. Crucially, the capacity for true spiritual "knowing" is presented as a gift of the Holy Spirit, enabling believers to apprehend the deep things of God 1 Corinthians 2:11, 1 Corinthians 2:12. Thus, G1492 is indispensable for comprehending the nature of faith, the path of divine revelation, the ethical demands of discipleship, and the ultimate hope of seeing God face-to-face.

How the KJV Renders It

Translation

Strong’s lists the renderings but not their weight. These are counted from the King James text of the tagged verses — the bar under each is how often the translators actually reached for it. Select one to filter the occurrences below.

Grammatical Forms

Morphology

In the Greek New Testament, this word appears as a verb across 386 occurrences, inflected in 27 grammatical forms — each row is one form, and the bar is how often it is that form. Select any form to read what each part of its name means, and to filter the occurrence list to it. These are this word’s own inflections, not words built from it — for those, see Related Words.

  • ἰδὼν
  • εἶδον
  • εἶδεν
  • ἰδόντες
  • ἰδεῖν
  • εἶδον
  • ᾔδει
  • ἴδητε
  • εἴδομεν
  • ἴδετε
  • εἶδες
  • ἴδωσιν

Related Words

Related

Words formed from this one

3 entries in Strong’s name this word as their origin. These are its derivatives — a different relationship from the inflected forms above, which are this same word bent by grammar.

G1491 εἶδος a view, i.e. form (literally or figuratively) G2397 ἰδέα a sight (comparative figuratively "idea"), i.e. aspect G2470 ἴσος similar (in amount and kind)

Also mentioned in the study

Other entries the study above points to — each one is drawn from a reference it makes. Follow the trail to see how the words connect.

G1097 γινώσκω a prolonged form of a primary verb G3708 ὁράω by extension, to attend to G991 βλέπω a primary verb G1497 εἴδωλον an image (i.e. for worship)

Theographic Context

Context

The people, places, and span of history the verses containing this word touch on — drawn from the theographic tagging of Scripture. Select any name to isolate its verses in the occurrence list.

Biblical Distribution

Distribution

Appears in 626 verses across 26 of the 27 books. Most frequent in John (105 verses); never once in the other 1.

82
Matthew
63
Mark
90
Luke
105
John
67
Acts
18
Romans
28
1 Corinthians
11
2 Corinthians
7
Galatians
4
Ephesians
9
Philippians
4
Colossians
16
1 Thessalonians
3
2 Thessalonians
5
1 Timothy
6
2 Timothy
2
Titus
1
Philemon
6
Hebrews
4
James
5
1 Peter
3
2 Peter
15
1 John
2
3 John
2
Jude
68
Revelation

Every Occurrence

Concordance

Every verse where the word is tagged in the King James text. Filter by book, by the English word the translators chose, by grammatical form, or search within the verses.

Sources. Definition and numbering: James Strong, Exhaustive Concordance of the Bible (1890). Morphology: STEPBible / Tyndale House (CC BY). Verse tagging: the King James text keyed to Strong’s numbers. Every count on this page is computed from the tagged corpus, not estimated.