2635. katalaleó
Lexical Summary
katalaleó: To speak against, to slander, to speak evil of

Original Word: καταλαλέω
Part of Speech: Verb
Transliteration: katalaleó
Pronunciation: kat-al-al-eh'-o
Phonetic Spelling: (kat-al-al-eh'-o)
KJV: speak against (evil of)
NASB: speaks against, slander, slandered, speak against
Word Origin: [from G2637 (κατάλαλος - slanderers)]

1. to be a traducer, i.e. to slander

Strong's Exhaustive Concordance
speak evil of.

From katalalos; to be a traducer, i.e. To slander -- speak against (evil of).

see GREEK katalalos

HELPS Word-studies

2635 katalaléō (from 2596 /katá, "down, according to," intensifying 2980 /laléō, "to prattle on") – properly, speak down to in a hostile, deriding way; to mock (revile), detracting from someone's reputation by "malice of speech directed against one's neightbor" (DNTT, 4,4); to defame, slander (backbite).

NAS Exhaustive Concordance
Word Origin
from katalalos
Definition
to speak evil of
NASB Translation
slander (1), slandered (1), speak against (1), speaks against (2).

Thayer's Greek Lexicon
STRONGS NT 2635: καταλαλέω

καταλαλέω, καταλάλω; to speak against one, to criminate, traduce: τίνος (in classical Greek mostly with the accusative; in the Sept. chiefly followed by κατά τίνος), James 4:11; 1 Peter 2:12; 1 Peter 3:16 (here T Tr marginal reading WH, ἐν καταλαλεῖσθε, wherein ye are spoken against).

Topical Lexicon
Concept Overview

Strong’s Greek 2635 represents malicious or defamatory speech directed “down” upon another, the verbal counterpart to contempt in the heart. It moves beyond mere criticism to the intent of damage—undermining reputation, questioning character, and usurping God’s prerogative as final Judge.

Occurrences in the New Testament

James 4:11 uses three cognate forms to drive home a communal prohibition: “Brothers, do not slander one another. Anyone who speaks against his brother or judges him speaks against the law and judges it…”.
1 Peter 2:12 addresses slander coming from outside the church: “Conduct yourselves with such honor among the Gentiles that, though they slander you as evildoers, they may see your good deeds and glorify God on the day He visits us.”
1 Peter 3:16 brings the theme full circle: “keeping a clear conscience, so that those who slander you may be put to shame by your good behavior in Christ.”

Historical and Cultural Background

In the Greco-Roman world reputation (honor/shame) functioned as social currency. Public accusation could ruin livelihoods or even invite legal sanction. Early believers were labeled “atheists” (for rejecting the pantheon) and accused of cannibalism or incest (misreadings of the Lord’s Supper and love feasts). Peter writes into this context, assuring persecuted congregations that consistent holiness will ultimately silence lies. James, ministering to scattered Jewish believers, confronts a subtler danger—slander within the congregation itself—warning that internal detraction violates the royal law of love as surely as external persecution does.

Theological Significance

1. Violation of the Ninth Commandment. Slander constitutes bearing false witness (Exodus 20:16), thus opposing God’s truthfulness.
2. Assault on the Imago Dei. By denigrating another person, the slanderer treats lightly the divine image (Genesis 1:27; James 3:9-10).
3. Usurpation of Divine Judgment. James links slander with judging the law, implying an assumption of authority that belongs exclusively to God (Romans 14:10-12).
4. Hindrance to Gospel Witness. Peter shows that slander distorts public perception of Christ’s body, yet faithful conduct can transform calumny into doxology (1 Peter 2:12).

Relation to Kindred Terms

• blasphēmeō (Strong’s 987) speaks evil of God, whereas 2635 targets fellow humans.
• diabole (Strong’s 1228; “Devil,” the slanderer) identifies Satan as archetypal accuser; human slander mimics demonic activity.
• psithurismos (Strong’s 5587; “whispering”) and katalalia (Strong’s 2636; “backbiting”) denote covert forms of the same sin.

Pastoral and Practical Application

1. Congregational Health. Elders must cultivate a culture where grievances are addressed directly (Matthew 18:15-17) rather than through rumor.
2. Personal Speech Ethics. Believers are to “let your ‘Yes’ be yes” (Matthew 5:37) and “speak the truth in love” (Ephesians 4:15), ensuring that correction is restorative, not destructive.
3. Apologetic Witness. When slander arises from unbelievers, the prescribed defense is exemplary conduct and clear conscience, not retaliatory speech (1 Peter 3:15-16).
4. Spiritual Warfare. Recognizing slander as satanic in origin equips the church to counter it with prayer, truth, and unity.

Old Testament Roots and Continuity

Leviticus 19:16 forbids going about as a talebearer; Proverbs catalogs slander among the detestable “six things the LORD hates” (Proverbs 6:16-19). James and Peter therefore stand firmly in prophetic tradition, demonstrating canonical harmony.

Christ as Model and Antidote

Isaiah 53:7 depicts Messiah silent before accusations; the Gospels show Jesus enduring false charges without sinning in return. His example undergirds Peter’s exhortation and empowers believers by the indwelling Spirit to overcome evil with good (Romans 12:21).

Early Church Reception

Second-century apologists (Justin Martyr, Athenagoras) answered pagan slanders by public defense and moral excellence, mirroring Peter’s counsel. Church orders such as the Didache warn against “evil speaking,” seeing it as lethal to fellowship and evangelism alike.

Contemporary Relevance

Digital media magnifies the reach and speed of slander. The timeless instruction of James 4 and 1 Peter equips modern believers: restrain the tongue, verify facts, assume charitable motives, and let virtuous living refute false allegations.

Summary

Strong’s 2635 confronts the speech that tears down. Scripture treats such speech not as a minor lapse but as a fundamental breach of love, truth, and reverence for God’s law. Whether the slander comes from within or without, the antidote is the same—obedience to the royal law, Christlike conduct, and unwavering confidence that God vindicates His people.

Forms and Transliterations
καταλαλει καταλαλεί καταλαλεῖ καταλαλείν καταλαλεισθε καταλαλεῖσθε καταλαλειτε καταλαλείτε καταλαλείτέ καταλαλεῖτε καταλαλήσαι καταλαλήσουσι καταλαλούμενα καταλαλούντα καταλαλουσιν καταλαλούσιν καταλαλοῦσιν καταλαλων καταλαλών καταλαλῶν καταλαλώσιν κατελάλει κατελάλεις κατελαλήσαμεν κατελάλησαν κατελάλουν katalalei katalaleî katalaleisthe katalaleîsthe katalaleite katalaleîte katalalon katalalôn katalalōn katalalō̂n katalalousin katalaloûsin
Links
Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
James 4:11 V-PMA-2P
GRK: Μὴ καταλαλεῖτε ἀλλήλων ἀδελφοί
NAS: Do not speak against one another,
KJV: not evil one of another,
INT: not speak against one another brothers

James 4:11 V-PPA-NMS
GRK: ἀδελφοί ὁ καταλαλῶν ἀδελφοῦ ἢ
NAS: Do not speak against one another,
KJV: brethren. He that speaketh evil of [his] brother,
INT: brothers He that speaks against [his] brother or

James 4:11 V-PIA-3S
GRK: ἀδελφὸν αὐτοῦ καταλαλεῖ νόμου καὶ
NAS: brethren. He who speaks against a brother
KJV: brother, speaketh evil of the law,
INT: brother of him speaks against [the] law and

1 Peter 2:12 V-PIA-3P
GRK: ἐν ᾧ καταλαλοῦσιν ὑμῶν ὡς
NAS: that in the thing in which they slander you as evildoers,
KJV: whereas they speak against you
INT: wherein which they speak against you as

1 Peter 3:16 V-PIM/P-2P
GRK: ἐν ᾧ καταλαλεῖσθε καταισχυνθῶσιν οἱ
NAS: that in the thing in which you are slandered, those
KJV: whereas they speak evil of you,
INT: in which they may speak against you they might be ashamed who

Strong's Greek 2635
5 Occurrences


καταλαλεῖ — 1 Occ.
καταλαλεῖσθε — 1 Occ.
καταλαλεῖτε — 1 Occ.
καταλαλῶν — 1 Occ.
καταλαλοῦσιν — 1 Occ.

2634b
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