1810. exaiphnés
Lexical Summary
exaiphnés: Suddenly

Original Word: ἐξαίφνης
Part of Speech: Adverb
Transliteration: exaiphnés
Pronunciation: ex-aif-nace'
Phonetic Spelling: (ex-ah'-eef-nace)
KJV: suddenly
NASB: suddenly
Word Origin: [from G1537 (ἐκ - among) and the base of G160 (αἰφνίδιος - suddenly)]

1. of a sudden (unexpectedly)

Strong's Exhaustive Concordance
suddenly.

From ek and the base of aiphnidios; of a sudden (unexpectedly) -- suddenly. Compare exapina.

see GREEK ek

see GREEK aiphnidios

see GREEK exapina

NAS Exhaustive Concordance
Word Origin
from ek and the same as aiphnidios
Definition
suddenly
NASB Translation
suddenly (5).

Thayer's Greek Lexicon
STRONGS NT 1810: ἐξαίφνης

ἐξαίφνης (WH ἐξέφνης (except in Acts 22:6), see their Appendix, p. 151), adverb (αἰφνης, ἄφνω, ἀφνως suddenly), of a sudden, suddenly, unexpectedly: Mark 13:36; Luke 2:13; Luke 9:39; Acts 9:3; Acts 22:6. (Homer, et al.; the Sept..)

STRONGS NT 1810: ἐξέφνης [ἐξέφνης, see ἐξαίφνης.]

Topical Lexicon
Definition and Overview

Strong’s Greek 1810 describes an event that breaks in without warning, interrupting the normal flow of life. Scripture uses the term to heighten awareness that God, angels, or even hostile spirits may act in a moment that cannot be forecast by human calculation.

Occurrences in Scripture

Mark 13:36; Luke 2:13; Luke 9:39; Acts 9:3; Acts 22:6.

Sudden Divine Revelation

Luke records two decisive moments in which God discloses Himself “suddenly.” When the angel announces the birth of Christ, “suddenly there appeared with the angel a great multitude of the heavenly host, praising God” (Luke 2:13). At Saul’s conversion, “suddenly a light from heaven shone around him” (Acts 9:3). In both cases the unanticipated arrival underscores that divine initiatives depend on God’s timing, not human scheduling. Salvation history advances in startling bursts of grace.

Suddenness and Eschatological Watchfulness

Jesus uses the word to warn His disciples: “Otherwise, he may come suddenly and find you sleeping” (Mark 13:36). The element of surprise serves as a pastoral prod: complacency is incompatible with Christian hope. The Lord’s return will not be preceded by a countdown that allows for last-minute repentance. Vigilance is therefore an enduring mark of authentic discipleship.

Sudden Spiritual Assault

A contrasting usage appears in Luke 9:39, where a demonic spirit “seizes him, and he suddenly screams.” The boy’s affliction dramatizes how evil often intrudes without notice. The same adverb that highlights God’s redeeming intervention also describes the enemy’s destructive ambush, reminding believers that spiritual warfare can erupt at any moment and must be met with continuous dependence on Christ.

Suddenness in Apostolic Testimony

Paul’s defense before the Jerusalem crowd repeats the Damascus-road narrative: “About noon … suddenly a bright light from heaven flashed around me” (Acts 22:6). The repetition legitimizes his apostleship and illustrates the irreversible authority of a divine call that interrupts and redirects a life. Paul’s ministry is rooted in a moment he neither initiated nor anticipated.

Theological Reflections

1. Sovereignty: God alone determines the moment of revelation, judgment, or rescue.
2. Mercy: Sudden light pierces even the most hostile heart, proving that grace outruns human resistance.
3. Judgment: The same suddenness that heralds salvation also signals accountability; sleepers are caught off guard.
4. Conflict: Both God and Satan employ surprise, yet only God’s surprises culminate in redemption.

Practical Ministry Applications

• Preaching: Urge hearers to respond “today” rather than presume upon tomorrow.
• Pastoral care: Prepare believers for unexpected trials; cultivate reflexive prayer and Scripture reliance.
• Evangelism: Trust that God can break in on the hardest cases as abruptly as He did with Saul.
• Discipleship: Foster habits of readiness—confession, reconciliation, stewardship—so that unannounced moments find saints faithful rather than fearful.

Summary

Strong’s Greek 1810 weaves through the New Testament as a literary alarm clock. Whether announcing angelic praise, demonic rage, prophetic warning, or saving illumination, its every occurrence signals that the living God is free to act without consultation. Wise believers therefore watch, worship, and work in constant readiness for the next “suddenly.”

Forms and Transliterations
εξαίφνης ἐξαίφνης εξάκις εξακισχίλιαι εξακισχίλιοι εξακισχιλίους εξεφνης ἐξέφνης exaiphnes exaiphnēs exaíphnes exaíphnēs
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Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Mark 13:36 Adv
GRK: μὴ ἐλθὼν ἐξαίφνης εὕρῃ ὑμᾶς
NAS: he should come suddenly and find
KJV: Lest coming suddenly he find you
INT: lest having come suddenly he should find you

Luke 2:13 Adv
GRK: καὶ ἐξαίφνης ἐγένετο σὺν
NAS: And suddenly there appeared
KJV: And suddenly there was with
INT: And suddenly there was with

Luke 9:39 Adv
GRK: αὐτόν καὶ ἐξαίφνης κράζει καὶ
NAS: seizes him, and he suddenly screams,
KJV: him, and he suddenly crieth out; and
INT: him and suddenly he cries out and

Acts 9:3 Adv
GRK: τῇ Δαμασκῷ ἐξαίφνης τε αὐτὸν
NAS: Damascus, and suddenly a light
KJV: and suddenly there shined round about
INT: to Damascus suddenly also him

Acts 22:6 Adv
GRK: περὶ μεσημβρίαν ἐξαίφνης ἐκ τοῦ
NAS: light suddenly flashed
KJV: about noon, suddenly there shone from
INT: about noon suddenly out of

Strong's Greek 1810
5 Occurrences


ἐξαίφνης — 5 Occ.

1809
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