5398. phoberos
Lexical Summary
phoberos: Fearful, terrifying, dreadful

Original Word: φοβερός
Part of Speech: Adjective
Transliteration: phoberos
Pronunciation: fo-be-ROS
Phonetic Spelling: (fob-er-os')
KJV: fearful, terrible
NASB: terrible, terrifying, terrifying thing
Word Origin: [from G5401 (φόβος - fear)]

1. frightful
2. (objectively) formidable

Strong's Exhaustive Concordance
fearful, terrible.

From phobos; frightful, i.e. (objectively) formidable -- fearful, terrible.

see GREEK phobos

HELPS Word-studies

Cognate: 5398 phoberós (an adjective) – fearful, prompting a person to withdraw (flee). See 5401 (phobos).

NAS Exhaustive Concordance
Word Origin
from phobeó
Definition
fearful
NASB Translation
terrible (1), terrifying (1), terrifying thing (1).

Thayer's Greek Lexicon
STRONGS NT 5398: φοβερός

φοβερός, φοβερά, φοβερόν (φοβέω), from Aeschylus down, (fearful i. e.):

1. (actively) inspiring fear, terrible, formidable; the Sept. for נורָא.

2. (passively) affected with fear, timid; in the N. T., only in the former (active) sense: Hebrews 10:27, 31; Hebrews 12:21.

Topical Lexicon
Overview

Strong’s Greek 5398 (phoberos) characterizes that which evokes profound dread, awe, or terror. In the New Testament it appears only in Hebrews, where it underscores the gravity of divine judgment and the holiness of God’s presence.

Biblical Usage

1. Hebrews 10:27 – the “fearful expectation of judgment” confronting willful apostates after they have rejected the once-for-all sacrifice of Christ.
2. Hebrews 10:31 – “It is a fearful thing to fall into the hands of the living God.”
3. Hebrews 12:21 – describing Sinai: “The sight was so terrifying that Moses said, ‘I am trembling with fear.’”

In each setting the term accentuates a holy dread anchored in God’s unchanging righteousness.

Context in Hebrews

Hebrews, written to believers tempted to abandon the faith, blends solemn warning with rich encouragement. Phoberos functions rhetorically to jolt readers from complacency:

• Covenant Accountability: Hebrews 10:26-31 contrasts the lesser sanctions of the Mosaic covenant with the greater consequence of spurning Christ’s blood. The epistle warns that contempt for the Son leaves no refuge except a “fearful expectation” of fiery justice.
• Sinai and Zion Contrast: Hebrews 12:18-29 recalls the terror of Sinai (phoberos) only to point believers toward the joyous assembly at heavenly Zion. While access is now open through Jesus, the text ends with the reminder that “our God is a consuming fire,” preserving reverent fear even amid grace.

Theological Significance

1. Holiness and Justice: Phoberos emphasizes the moral perfection of God. Divine love never nullifies divine wrath; both uphold the covenant.
2. Fear as Healthy Reverence: Scripture differentiates servile terror from filial fear. The dread portrayed in Hebrews is not irrational panic but a sober recognition that God judges impartially (1 Peter 1:17).
3. Perseverance in Faith: By highlighting the dreadful alternative to steadfastness, Hebrews fortifies believers to “hold fast the confession of our hope without wavering” (Hebrews 10:23).

Old Testament Background

Hebrews 12:21 quotes Deuteronomy 9:19 where Moses “dreaded” the Lord’s anger after Israel’s idolatry. The epistle thereby links New-Covenant believers with Israel’s foundational experiences, affirming continuity in God’s character. The terror at Sinai, the Day of the Lord motifs (Isaiah 2:19; Joel 2:11), and the prophetic imagery of consuming fire all converge in Hebrews’ warning.

Christological Perspective

The same holiness that once shook Sinai is now revealed in the crucified and risen Son. Rejecting His mediation revives Sinai’s terror without the benefit of sacrifice (Hebrews 10:29). Conversely, trusting Him transforms fear into worshipful awe, “since we receive a kingdom that cannot be shaken” (Hebrews 12:28).

Eschatological Implications

Phoberos foreshadows the final assize where every deed is laid bare (Revelation 20:11-15). For the unrepentant it signals irreversible ruin; for believers it underscores the seriousness of the coming evaluation of works (2 Corinthians 5:10).

Pastoral and Ministry Application

• Preaching: Faithful exposition must present both grace and judgment, allowing phoberos to awaken consciences.
• Counseling: When discipling those flirting with apostasy, Hebrews provides a God-given deterrent, steering souls back to Christ’s sufficiency.
• Worship: Corporate gatherings should balance celebratory joy with solemn reverence, reflecting the dual realities of Zion’s welcome and Sinai’s fire.

Historical Reception

Early church fathers (e.g., Chrysostom, Augustine) cited Hebrews 10:31 to curb moral laxity and heresy. Reformers appealed to the verse against antinomianism, while the Great Awakening preachers employed it to press for genuine conversion.

Related Concepts and Terms

• φόβος (phobos) – fear, awe
• δεινός (deinos) – dreadful
• σεβασμός (sebasmos) – reverence

Together these words form a scriptural tapestry in which fear of God fosters wisdom (Proverbs 9:10) and perseverance (Philippians 2:12).

Key Takeaways

Phoberos in Hebrews preserves the tension between access and awe, grace and judgment. It calls the church to cherish Christ’s sacrifice, persevere in holiness, and proclaim both the comfort and the warning integral to the gospel.

Forms and Transliterations
φοβερα φοβερά φοβερὰ φοβεράν φοβεράς φοβερον φοβερόν φοβερὸν φοβερός φοβερού φοβερώ φοβερών φοβερώς phobera phoberà phoberon phoberòn
Links
Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Hebrews 10:27 Adj-NFS
GRK: φοβερὰ δέ τις
NAS: but a terrifying expectation
KJV: a certain fearful looking for
INT: terrifying however certain

Hebrews 10:31 Adj-NNS
GRK: φοβερὸν τὸ ἐμπεσεῖν
NAS: It is a terrifying thing to fall
KJV: [It is] a fearful thing to fall into
INT: [It is] a fearful thing to fall

Hebrews 12:21 Adj-NNS
GRK: καί οὕτω φοβερὸν ἦν τὸ
NAS: And so terrible was the sight,
KJV: And so terrible was the sight,
INT: and so fearful was the

Strong's Greek 5398
3 Occurrences


φοβερὰ — 1 Occ.
φοβερὸν — 2 Occ.

5397
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