601. apokaluptó
Lexical Summary
apokaluptó: To reveal, to uncover, to disclose

Original Word: ἀποκαλύπτω
Part of Speech: Verb
Transliteration: apokaluptó
Pronunciation: ah-po-kah-LOOP-to
Phonetic Spelling: (ap-ok-al-oop'-to)
KJV: reveal
NASB: revealed, reveal, revelation is made
Word Origin: [from G575 (ἀπό - since) and G2572 (καλύπτω - cover)]

1. to take off the cover, i.e. disclose

Strong's Exhaustive Concordance
reveal.

From apo and kalupto; to take off the cover, i.e. Disclose -- reveal.

see GREEK apo

see GREEK kalupto

HELPS Word-studies

601 apokalýptō (from 575 /apó, "away from" and 2572 /kalýptō, "to cover") – properly, uncover, revealing what is hidden (veiled, obstructed), especially its inner make-up; (figuratively) to make plain (manifest), particularly what is immaterial (invisible).

NAS Exhaustive Concordance
Word Origin
from apo and kaluptó
Definition
to uncover, reveal
NASB Translation
reveal (5), revealed (20), revelation is made (1).

Thayer's Greek Lexicon
STRONGS NT 601: ἀποκαλύπτω

ἀποκαλύπτω: future ἀποκαλύψω; 1 aorist ἀπεκάλυψα; (passive, present ἀποκαλύπτομαι); 1 aorist ἀπεκαλύφθην; 1 future ἀποκαλυφθήσομαι; in Greek writings from (Herodotus and) Plato down; in the Sept. equivalent to גָלָה;

1. properly, to uncover, lay open what has been veiled or covered up; to disclose, make bare: Exodus 20:26; Leviticus 18:11ff; Numbers 5:18; Susanna 32; τά στήθη, Plato, Prot., p. 352 a.; τήν κεφαλήν, Plutarch, Crass. 6.

2. metaphorically, to make known, make manifest, disclose, what before was unknown;

a. passages of any method whatever by which something before unknown becomes evident: Matthew 10:26; Luke 12:2.

b. passages of matters which come to light from things done: Luke 2:35 (some make the verb middle here); John 12:38 (Isaiah 53:1); Romans 1:18; from the gospel: Romans 1:17.

c. ἀποκαλύπτειν τί τίνι is used of God revealing to men things unknown (Daniel 2:19; Theod., 22, 28; Psalm 97:2 (); 1 Samuel 2:27, cf. 3:21), especially those relating to salvation: — whether by deeds, Matthew 11:25; Matthew 16:17; Luke 10:21 (by intimacy with Christ, by his words and acts); — or by the Holy Spirit, 1 Corinthians 2:10; 1 Corinthians 14:30; Ephesians 3:5; Philippians 3:15; 1 Peter 1:12; τόν υἱόν αὐτοῦ ἐν ἐμοί who, what, how great his Son is, in my soul, Galatians 1:16. Of Christ teaching men: Matthew 11:27; Luke 10:22.

d. passages of things, previously non-existent, coming into being and to view: as, δόξα, Romans 8:18 (εἰς ἡμᾶς to be conferred on us); 1 Peter 5:1; σωτηρία, 1 Peter 1:5; πίστις, Galatians 3:23; the day of judgment, 1 Corinthians 3:13.

e. passages of persons, previously concealed, making their appearance in public: of Christ, who will return from heaven where he is now hidden (Colossians 3:3) to the earth, Luke 17:30; of Anti-christ, 2 Thessalonians 2:3, 6, 8. (On this word ἀποκαλύπτω (and the following) cf. Westcott, Introduction to the Study of the Gospels, p. 9f (American edition 34f); Lücke, Einl. in d. Offenb. d. Johan. 2nd edition, p. 18ff; especially F. G. B. van Bell, Disput. theelog. de vocabulis φανερουν et ἀποκαλύπτειν in N. T., Lugd. Bat., 1849. φανερόω is thought to describe an external manifestation, to the senses and hence, open to all, but single or isolated; ἀποκαλύπτω an internal disclosure, to the believer, and abiding. The ἀποκάλυψις or unveiling precedes and produces the φανέρωσις or manifestation; the former looks toward the object revealed, the latter toward the persons to whom the revelation is made. Others, however, seem to question the possibility of discrimination; see e. g. Fritzsche on Romans, vol. ii., 149. Cf. 1 Corinthians 3:13.)

Topical Lexicon
Scope and Theological Center

The verb ἀποκαλύπτω stands at the heart of biblical revelation, describing God’s gracious act of unveiling truths, events, persons, and destinies previously hidden. Across its twenty-six New Testament occurrences the term consistently testifies that God, never humanity, is the ultimate Revealer; what He discloses is authoritative, trustworthy, and oriented toward redemption and judgment.

Divine Initiative and Sovereignty

Jesus celebrates the Father’s freedom to “hide… and reveal” (Matthew 11:25; Luke 10:21), a theme reaffirmed when He tells Peter, “this was not revealed to you by flesh and blood, but by My Father in heaven” (Matthew 16:17). Paul echoes the same sovereignty: “God… was pleased to reveal His Son in me” (Galatians 1:16). The verbs always place God or His Spirit (1 Corinthians 2:10) as subject, underscoring that revelation is never self-attained but divinely bestowed.

Christ the Content and Mediator of Revelation

Several texts unite Christ’s person and mission with apokalyptō. The Father entrusts “all things” to the Son, and the Son chooses “to reveal” the Father (Matthew 11:27; Luke 10:22). Eschatologically, “the Son of Man is revealed” (Luke 17:30), pointing to His future public manifestation. John cites Isaiah: “To whom has the arm of the Lord been revealed?” (John 12:38), identifying Jesus’ signs as the supreme disclosure of God’s saving power.

The Mystery Now Made Known to the Apostles

Ephesians 3:5 states that the gospel mystery “has now been revealed to His holy apostles and prophets by the Spirit.” Peter confirms that Old Testament prophets discovered “they were not serving themselves, but you, when they spoke of the things that have now been told you… by the Holy Spirit sent from heaven” (1 Peter 1:12). Thus apokalyptō marks the once-hidden plan, now openly preached.

Instruction and Guidance within the Church

1 Corinthians 14:30 envisages spontaneous disclosure during worship: “if a revelation comes to someone who is seated, the first speaker should stop.” Philippians 3:15 encourages mature believers that “God will reveal even this to you,” assuring ongoing illumination for ethical disagreements. In each case revelation is practical, fostering edification, unity, and maturity.

Unmasking Sin and Testing Works

Jesus warns, “There is nothing concealed that will not be revealed” (Matthew 10:26; Luke 12:2). Simeon foretells that the Messiah will pierce hearts “so that the thoughts of many hearts will be revealed” (Luke 2:35). Paul adds that every ministry will be “revealed with fire” on the Day (1 Corinthians 3:13). Revelation therefore exposes hypocrisy and validates genuine service.

Gospel Revelation of Righteousness and Wrath

Romans 1:17–18 holds a striking duality: “the righteousness of God is revealed… The wrath of God is being revealed from heaven.” The same gospel that unveils God’s saving righteousness simultaneously discloses His holy anger against sin, ensuring a balanced proclamation.

Eschatological Unveiling of Glory and Evil

Believers await “the glory that will be revealed” (Romans 8:18; 1 Peter 5:1), and “the salvation… ready to be revealed in the last time” (1 Peter 1:5). Conversely, the man of lawlessness will be “revealed” before Christ returns (2 Thessalonians 2:3, 6, 8). Revelation language thus frames the bitter-sweet consummation: final blessing for the redeemed, final exposure and destruction of wickedness.

Pedagogical Function of the Law

Galatians 3:23 observes that humanity was “held in custody under the law… until faith should be revealed.” The law’s preparatory role ends once the gospel is unveiled, highlighting the progress of salvation history.

Ministry Implications

1. Dependence on God: All faithful teaching and preaching must recognize revelation as divine gift, sought in prayer and submitted to Scripture.
2. Humility and Gratitude: Because God chooses unexpected recipients—“little children” rather than “the wise and learned”—believers boast only in His grace.
3. Holiness and Accountability: The certainty that secrets will be revealed fosters transparent living and diligent service.
4. Hope and Perseverance: The promise of future glory sustains believers amid suffering, orienting them toward the ultimate unveiling of Christ.

Historical Reflection

Early church fathers drew heavily on apokalyptō vocabulary to defend prophetic fulfillment and apostolic authority. The Reformation reclaimed Romans 1:17 as the heartbeat of justification by faith, stressing that the gospel reveals—not achieves—God’s righteousness. Throughout church history, orthodox theology has maintained that public, canonical revelation concluded with the apostolic era, yet personal illumination (never contradicting Scripture) continues, aligning with passages such as Philippians 3:15.

Summary

Strong’s 601 charts the movement from concealment to disclosure, from promise to fulfillment, and from present struggle to future glory. Every occurrence reinforces the conviction that God speaks, God acts, and God will finally unveil His purposes in Christ for the salvation of His people and the vindication of His holy name.

Forms and Transliterations
απεκαλυφθη απεκαλύφθη ἀπεκαλύφθη απεκαλύφθην απεκαλύφθησαν απεκάλυψα απεκάλυψαν απεκαλυψας απεκάλυψας ἀπεκάλυψας απεκάλυψε απεκάλυψέ απεκαλυψεν απεκάλυψεν ἀπεκάλυψεν ἀπεκάλυψέν αποκαλύπτει αποκαλυπτεσθαι αποκαλύπτεσθαι ἀποκαλύπτεσθαι αποκαλυπτεται αποκαλύπτεται ἀποκαλύπτεται αποκαλυπτόμενοι αποκαλύπτων αποκαλυφθείς αποκαλυφθη αποκαλυφθή ἀποκαλυφθῇ αποκαλυφθηναι αποκαλυφθήναι ἀποκαλυφθῆναι αποκαλυφθησεται αποκαλυφθήσεται ἀποκαλυφθήσεται αποκαλυφθήσομαι αποκαλυφθωσιν αποκαλυφθώσιν ἀποκαλυφθῶσιν αποκαλυψαι αποκαλύψαι αποκάλυψαι ἀποκαλύψαι αποκαλυψει αποκαλύψει ἀποκαλύψει αποκαλύψεις αποκαλύψη αποκάλυψον αποκαλύψω αποκεκαλυμμένοι αποκεκλεισμένοι apekaluphthe apekaluphthē apekalupsas apekalupsen apekalyphthe apekalyphthē apekalýphthe apekalýphthē apekalypsas apekálypsas apekalypsen apekálypsen apekálypsén apokaluphthe apokaluphthē apokaluphthenai apokaluphthēnai apokaluphthesetai apokaluphthēsetai apokaluphthosin apokaluphthōsin apokalupsai apokalupsei apokaluptesthai apokaluptetai apokalyphthe apokalyphthē apokalyphthêi apokalyphthē̂i apokalyphthenai apokalyphthênai apokalyphthēnai apokalyphthē̂nai apokalyphthesetai apokalyphthēsetai apokalyphthḗsetai apokalyphthosin apokalyphthôsin apokalyphthōsin apokalyphthō̂sin apokalypsai apokalýpsai apokalypsei apokalýpsei apokalyptesthai apokalýptesthai apokalyptetai apokalýptetai
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Englishman's Concordance
Matthew 10:26 V-FIP-3S
GRK: ὃ οὐκ ἀποκαλυφθήσεται καὶ κρυπτὸν
NAS: concealed that will not be revealed, or
KJV: shall not be revealed; and hid,
INT: which not will be revealed or hidden

Matthew 11:25 V-AIA-2S
GRK: συνετῶν καὶ ἀπεκάλυψας αὐτὰ νηπίοις
NAS: and intelligent and have revealed them to infants.
KJV: and hast revealed them
INT: learned and did reveal them to little children

Matthew 11:27 V-ANA
GRK: ὁ υἱὸς ἀποκαλύψαι
NAS: the Son wills to reveal [Him].
KJV: the Son will reveal [him].
INT: the Son to reveal [him]

Matthew 16:17 V-AIA-3S
GRK: αἷμα οὐκ ἀπεκάλυψέν σοι ἀλλ'
NAS: and blood did not reveal [this] to you, but My Father
KJV: hath not revealed [it] unto thee, but
INT: blood not revealed [it] to you but

Luke 2:35 V-ASP-3P
GRK: ὅπως ἂν ἀποκαλυφθῶσιν ἐκ πολλῶν
NAS: from many hearts may be revealed.
KJV: many hearts may be revealed.
INT: so that anyhow might be revealed of many

Luke 10:21 V-AIA-2S
GRK: συνετῶν καὶ ἀπεκάλυψας αὐτὰ νηπίοις
NAS: and intelligent and have revealed them to infants.
KJV: and hast revealed them
INT: intelligent and did reveal them to little children

Luke 10:22 V-ANA
GRK: ὁ υἱὸς ἀποκαλύψαι
NAS: the Son wills to reveal [Him].
KJV: the Son will reveal [him].
INT: the Son to reveal [him]

Luke 12:2 V-FIP-3S
GRK: ὃ οὐκ ἀποκαλυφθήσεται καὶ κρυπτὸν
NAS: covered up that will not be revealed, and hidden
KJV: shall not be revealed; neither hid,
INT: which not will be revealed nor hidden

Luke 17:30 V-PIM/P-3S
GRK: τοῦ ἀνθρώπου ἀποκαλύπτεται
NAS: that the Son of Man is revealed.
KJV: when the Son of man is revealed.
INT: of man is revealed

John 12:38 V-AIP-3S
GRK: Κυρίου τίνι ἀπεκαλύφθη
NAS: OF THE LORD BEEN REVEALED?
KJV: of the Lord been revealed?
INT: of [the] Lord to whom was it revealed

Romans 1:17 V-PIM/P-3S
GRK: ἐν αὐτῷ ἀποκαλύπτεται ἐκ πίστεως
NAS: of God is revealed from faith
KJV: of God revealed from
INT: in it is revealed by faith

Romans 1:18 V-PIM/P-3S
GRK: Ἀποκαλύπτεται γὰρ ὀργὴ
NAS: of God is revealed from heaven
KJV: of God is revealed from
INT: there is revealed indeed wrath

Romans 8:18 V-ANP
GRK: μέλλουσαν δόξαν ἀποκαλυφθῆναι εἰς ἡμᾶς
NAS: to be compared with the glory that is to be revealed to us.
KJV: which shall be revealed in
INT: about glory to be revealed to us

1 Corinthians 2:10 V-AIA-3S
GRK: ἡμῖν δὲ ἀπεκάλυψεν ὁ θεὸς
NAS: For to us God revealed [them] through
KJV: God hath revealed [them] unto us
INT: to us moreover revealed [them] God

1 Corinthians 3:13 V-PIM/P-3S
GRK: ἐν πυρὶ ἀποκαλύπτεται καὶ ἑκάστου
NAS: it because it is [to be] revealed with fire,
KJV: it, because it shall be revealed by
INT: in fire it is revealed and of each

1 Corinthians 14:30 V-ASP-3S
GRK: δὲ ἄλλῳ ἀποκαλυφθῇ καθημένῳ ὁ
NAS: But if a revelation is made to another
KJV: If [any thing] be revealed to another
INT: moreover to another should be a revelation sitting by the

Galatians 1:16 V-ANA
GRK: ἀποκαλύψαι τὸν υἱὸν
NAS: to reveal His Son in me so
KJV: To reveal his Son
INT: to reveal the Son

Galatians 3:23 V-ANP
GRK: μέλλουσαν πίστιν ἀποκαλυφθῆναι
NAS: which was later to be revealed.
KJV: which should afterwards be revealed.
INT: being about to faith to be revealed

Ephesians 3:5 V-AIP-3S
GRK: ὡς νῦν ἀπεκαλύφθη τοῖς ἁγίοις
NAS: as it has now been revealed to His holy
KJV: it is now revealed unto his holy
INT: as now it was revealed to holy

Philippians 3:15 V-FIA-3S
GRK: θεὸς ὑμῖν ἀποκαλύψει
NAS: God will reveal that also
KJV: minded, God shall reveal even this
INT: God to you will reveal

2 Thessalonians 2:3 V-ASP-3S
GRK: πρῶτον καὶ ἀποκαλυφθῇ ὁ ἄνθρωπος
NAS: of lawlessness is revealed, the son
KJV: of sin be revealed, the son
INT: first and shall have been revealed the man

2 Thessalonians 2:6 V-ANP
GRK: εἰς τὸ ἀποκαλυφθῆναι αὐτὸν ἐν
NAS: that in his time he will be revealed.
KJV: that he might be revealed in his
INT: for to be revealed him in

2 Thessalonians 2:8 V-FIP-3S
GRK: καὶ τότε ἀποκαλυφθήσεται ὁ ἄνομος
NAS: that lawless one will be revealed whom
KJV: that Wicked be revealed, whom
INT: and then will be revealed the lawless [one]

1 Peter 1:5 V-ANP
GRK: σωτηρίαν ἑτοίμην ἀποκαλυφθῆναι ἐν καιρῷ
NAS: ready to be revealed in the last
KJV: ready to be revealed in
INT: salvation ready to be revealed in [the] time

1 Peter 1:12 V-AIP-3S
GRK: οἷς ἀπεκαλύφθη ὅτι οὐχ
NAS: It was revealed to them that they were not serving
KJV: Unto whom it was revealed, that not
INT: to whom it was revealed that not

Strong's Greek 601
26 Occurrences


ἀπεκαλύφθη — 3 Occ.
ἀπεκάλυψας — 2 Occ.
ἀπεκάλυψέν — 2 Occ.
ἀποκαλυφθῇ — 2 Occ.
ἀποκαλυφθῆναι — 4 Occ.
ἀποκαλυφθήσεται — 3 Occ.
ἀποκαλυφθῶσιν — 1 Occ.
ἀποκαλύψαι — 3 Occ.
ἀποκαλύψει — 1 Occ.
ἀποκαλύπτεσθαι — 1 Occ.
ἀποκαλύπτεται — 4 Occ.

600
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