4642. skléros
Lexical Summary
skléros: Hard, harsh, difficult, severe

Original Word: σκληρός
Part of Speech: Adjective
Transliteration: skléros
Pronunciation: sklā-ros'
Phonetic Spelling: (sklay-ros')
KJV: fierce, hard
NASB: hard, difficult, harsh things, strong
Word Origin: [from the base of G4628 (σκέλος - legs)]

1. dry, i.e. hard or tough
2. (figuratively) harsh, severe

Strong's Exhaustive Concordance
fierce, hard.

From the base of skelos; dry, i.e. Hard or tough (figuratively, harsh, severe) -- fierce, hard.

see GREEK skelos

HELPS Word-studies

4642 sklērós – properly, hard (because dried out); (figuratively) stiff, stubborn (unyielding) describing people who "won't budge" (bend, submit), or what is unyieldingly harsh.

NAS Exhaustive Concordance
Word Origin
from skelló (to dry)
Definition
hard, rough
NASB Translation
difficult (1), hard (2), harsh things (1), strong (1).

Thayer's Greek Lexicon
STRONGS NT 4642: σκληρός

σκληρός, σκληρά, σκληρόν (σκέλλω, σκληναι, (to dry up, be dry)), from (Hesiod, Theognis), Pindar, Aeschylus down; the Sept. for קָשֶׁה, hard, harsh, rough, stiff (τά σκληρά καί τά μαλακά, Xen) mem. 3, 10, 1); of men, metaphorically, harsh, stern, hard: Matthew 25:24 (1 Samuel 25:3; Isaiah 19:4; Isaiah 48:4; many examples from secular authors are given by Passow, under the word, 2 b.; (Liddell and Scott, under the word, II. 2; especially Trench, § xiv.)); of things: ἄνεμος, violent, rough, James 3:4; λόγος, offensive and intolerable, John 6:60, equivalent to ὅς σκανδαλίζει, 61; σκληρά λαλεῖν κατά τίνος, to speak hard and bitter things against one, Jude 1:15 (σκληρά λαλεῖν τίνι is also used of one who speaks roughly, Genesis 42:7, 30; ἀποκρίνεσθαι σκληρά, to reply with threats, 1 Kings 12:13); σκληρόν ἐστι followed by an infinitive, it is dangerous, turns out badly (A. V. it is hard), Acts 9:5 Rec.; .

Topical Lexicon
Overview

Strong’s Greek 4642 conveys the idea of what is “hard, harsh, stiff, or unyielding.” In the New Testament it may describe physical conditions (James 3:4), verbal expressions (Jude 1:15), inward attitudes (John 6:60), or the unreasonableness of resisting God (Acts 26:14). Each occurrence calls attention to humanity’s tendency toward obstinacy and the divine requirement that hardness give way to humble submission.

Canonical Occurrences

Matthew 25:24 – The third servant brands his master “a hard man,” exposing his own misconception of the Master’s character and justifying slothful stewardship.
John 6:60 – Some disciples label Jesus’ teaching “a difficult [hard] statement,” revealing that spiritual resistance, not obscure vocabulary, made the saying unbearable.
Acts 9:5; 26:14 – Saul learns that it is “hard” to kick against the goads, a rural proverb illustrating the futility of fighting the Lord’s purpose.
James 3:4 – “Strong winds” picture the powerful, unbending forces that must be mastered by the small rudder, paralleling the tongue’s potential control over life’s direction.
Jude 1:15 – The Lord will judge “harsh words” spoken by the ungodly, showing that hardened speech is neither forgotten nor excused.

Nuances and Semantic Range

1. Physical Rigidity: As with the “strong winds” in James, the term can simply denote force or toughness in creation.
2. Moral Severity: In Matthew 25 the presumed harshness of the master is an excuse for disobedience—an early reminder that wrong theology births wrong practice.
3. Intellectual Difficulty: John 6 uses the word to describe teaching perceived as intolerable, underlining that spiritual hardness masquerades as intellectual offense.
4. Stubborn Resistance: Luke records Paul’s testimony twice to stress how self-willed hardness collapses when confronted by the risen Christ.
5. Verbal Cruelty: Jude catalogs “harsh words,” linking speech with character and final judgment.

Old Testament Echoes

Hebrew writers often describe Pharaoh’s “hard heart” (Exodus 7:13) and Israel’s “stiff neck” (Deuteronomy 10:16). The Septuagint frequently employs the root σκληρ- to translate these phrases, preparing readers for the New Testament’s development of the theme. The moral lesson is consistent: stubborn resistance provokes divine discipline, while repentance brings mercy.

Historical and Cultural Background

“Kicking against the goads” (Acts 26:14) comes from agriculture: a pointed stick prodding oxen. Likewise, ancient maritime practice (James 3:4) demonstrates that even the strongest gales can be countered with skillful steering. Both images would have been familiar to first-century audiences and reinforce the folly of obstinate resistance versus the wisdom of yielded obedience.

Theological Themes

1. Divine Authority vs. Human Rebellion – Hardness represents humanity’s refusal to bow, whether outward (persecution) or inward (unbelief).
2. Judgment and Accountability – Jude shows that severe speech and hardened attitudes are subject to divine review.
3. Grace that Overcomes Hardness – Saul’s conversion proves that the Lord can shatter even the most obstinate opposition.
4. Discipleship Costs – John 6 reminds believers that truth may feel “hard” yet remains life-giving; the proper response is faith, not retreat.
5. Stewardship and Eschatology – Matthew 25 ties a servant’s misperception of severity to squandered opportunity and ultimate loss.

Practical Ministry Implications

• Preaching: Address the difference between perceived harshness and actual holiness in God’s character to dismantle excuses for disobedience.
• Counseling: Trace harsh speech back to heart hardness; repentance must reach root attitudes, not merely surface words.
• Evangelism: Use Paul’s testimony to encourage those resisting the gospel—divine pursuit is persistent yet gracious.
• Discipleship: Prepare believers for teachings that confront comfort; “hard sayings” sift fickle followers from true disciples.
• Leadership: Like the ship’s rudder, a leader’s yielded tongue steers communities through cultural headwinds.

Related New Testament Concepts

• πωρόω (to harden): focuses on the heart’s callousness (Mark 6:52).
• σκληροκαρδία (hard-heartedness): Jesus’ diagnosis of divorce debate (Matthew 19:8).
• ἀπειθέω (to disobey): the outworking of hardness in persistent unbelief (Romans 2:8).

Summary

Across its six New Testament occurrences, σκληρός exposes the tension between God’s rightful severity and the human inclination toward rigidity and rebellion. Whether describing external forces, internal resistance, or verbal hostility, the word presses readers to exchange hardness for humble submission, trusting that the One who seems “hard” to the unfaithful is exceedingly gracious to those who believe.

Forms and Transliterations
σκληρά σκληράς σκληροί σκληροίς σκληρον σκληρόν Σκληρος Σκληρός σκληρὸς σκληρότεροί σκληρώ σκληρων σκληρών σκληρῶν skleron sklerón sklerôn sklēron sklērón sklērōn sklērō̂n Skleros Sklerós skleròs Sklēros Sklērós sklēròs
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Englishman's Concordance
Matthew 25:24 Adj-NMS
GRK: σε ὅτι σκληρὸς εἶ ἄνθρωπος
NAS: I knew you to be a hard man,
KJV: that thou art an hard man, reaping
INT: you that hard you are a man

John 6:60 Adj-NMS
GRK: αὐτοῦ εἶπαν Σκληρός ἐστιν ὁ
NAS: This is a difficult statement;
KJV: This is an hard saying; who
INT: of him said Hard is the

Acts 9:5 Adj-NNS
GRK: σὺ διώκεις σκληρόν σοι πρὸς
KJV: persecutest: [it is] hard for thee
INT: you persecute [It is] hard for you against

Acts 26:14 Adj-NNS
GRK: με διώκεις σκληρόν σοι πρὸς
NAS: are you persecuting Me? It is hard for you to kick
KJV: me? [it is] hard for thee
INT: me persecute you [it is] hard for you against

James 3:4 Adj-GMP
GRK: ὑπὸ ἀνέμων σκληρῶν ἐλαυνόμενα μετάγεται
NAS: and are driven by strong winds,
KJV: of fierce winds,
INT: by winds strong being driven are turned about

Jude 1:15 Adj-GNP
GRK: πάντων τῶν σκληρῶν ὧν ἐλάλησαν
NAS: and of all the harsh things which
KJV: all their hard [speeches] which
INT: all the hard [things] which spoke

Strong's Greek 4642
6 Occurrences


σκληρῶν — 2 Occ.
σκληρόν — 2 Occ.
σκληρὸς — 2 Occ.

4641
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