Greek word · G988
βλασφημία
blasphēmia
blasphemy
Speech that harms someone's reputation: slander, defamation, reviling, abusive or insulting talk. It can be aimed at people (rivals, rulers, neighbours) or at gods and sacred things. The core idea is defaming someone, not crude language as such.
Appears 18 times in 17 verses of the Greek New Testament. ·
What it means
βλασφημία, -ας, ἡ
(βλάσφημος), [in LXX: Ezekiel 35:12 (נֶאָצָה), Daniel 3:29 (96) (שׁלה), Tobit 1:18, 1Ma.2:6, 2Ma.8:4 10:35 15:24 * ;]
(a) railing slander: Matthew 12:31 15:19, Mark 3:28 7:22, Ephesians 4:31, Colossians 3:8, 1 Timothy 6:4, Jude 1:9, Revelation 2:9
(b) spec., impious speech against God, blasphemy: Matthew 26:65, Mark 14:64, Luke 5:21, John 10:33, Revelation 13:5; ὄνομα βλασφημίας, Revelation 13:1 17:3; with genitive obj. Matthew 12:31; πρὸς τ. θεόν, Revelation 13:6 (Cremer, 570; DB, i, 305; DCG ii, 423).†
(AS)
From G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), via STEPBible.org (CC BY 4.0).
In depth
From the study of Matthew 12:31
- Range of meaning
Speech that harms someone's reputation: slander, defamation, reviling, abusive or insulting talk. It can be aimed at people (rivals, rulers, neighbours) or at gods and sacred things. The core idea is defaming someone, not crude language as such. In Jewish usage, when the target is God, it means reviling or dishonouring God, especially by speaking against his name, power or works.
- Against the English
English "blasphemy" is now almost only religious: irreverent talk about God, swearing with God's name, or mocking sacred things. Greek covers more ground: the same word is used for slander against other people (Mark 7:22; Eph 4:31; Col 3:8, where translations usually say "slander"). The NIV shows this range by putting "slander" for the first occurrence and "blasphemy" for the second. YLT's "evil speaking" is closest to the root meaning.
- How it drifted
The English word came through Church Latin blasphemia and was used mainly in church and law (blasphemy statutes) for offences against God and religion. Its everyday Greek sense of slander dropped away, and in popular use it slid toward profanity and swearing.
- Used elsewhere in the period
Classical writers (Demosthenes, for example) use the word group for slander and abuse of people. In Jewish Greek it is used of reviling God's people and God: 1 Maccabees 2:6 (Mattathias sees the "blasphemies" committed in Judah and Jerusalem); 2 Maccabees 8:4; 10:35. Josephus retells the law of Leviticus 24 as "let him who blasphemes God be stoned" (Antiquities 4.202). The Hebrew background includes giddef, "revile," in Numbers 15:30 (the person who sins "with a high hand" reviles the LORD and is cut off) and 2 Kings 19:6, 22 (the Assyrian officer's taunts against the LORD).
From the study of Matthew 15:19
- Range of meaning
Speech that harms someone's name or standing: slander, defamation, abusive or insulting talk. It can be aimed at people (Eph 4:31; Col 3:8; Titus 3:2 with the verb) or at God, his name or what is holy (Matt 26:65).
- Against the English
KJV and WEB 'blasphemies' sound to a modern reader like irreverence toward God only. BSB, ESV and NIV 'slander' and YLT 'evil speakings' catch the more likely sense here.
- How it drifted
English 'blasphemy' entered through church Latin (blasphemia) and came to be restricted almost entirely to offense against God, partly through blasphemy laws. The Greek word was much wider.
- Used elsewhere in the period
Classical and Hellenistic Greek use blasphēmia for slander against people (e.g. in Demosthenes and Polybius). The New Testament vice lists use it for abusive speech against others (Eph 4:31; Col 3:8; 1 Tim 6:4). In the Septuagint and the Gospels it is also used for speech against God (2 Kgs 19:4–6 LXX; Matt 9:3; 26:65).
From the study of Ephesians 4:31
- Range of meaning
Speech that damages someone's reputation: defamation, slander, abuse, insult. It can be aimed at people or at God. BDAG: "speech that denigrates or defames, reviling, denigration, disrespect, slander," whether against humans or against God.
- Against the English
Modern English "blasphemy" means only irreverent speech about God or sacred things. The supplied lemma gloss and many interlinears give "blasphemy" as the dictionary meaning. Here the target is people, so BSB, NIV, ESV and NASB rightly say "slander" and KJV says "evil speaking."
- How it drifted
Church usage, through Latin blasphemia, narrowed the word to offences against God. In classical and Koine Greek it was simply defamation, and could be used of slandering a fellow citizen.
- Used elsewhere in the period
Classical writers (e.g. Demosthenes) use it for slanderous abuse of people. In the NT the people-directed sense appears in Col 3:8 (in the same list), 1 Tim 6:4, and Titus 3:2 ("to slander [blasphēmein] no one"). It is also used of speech against God (Mark 2:7; Rev 13:6).
Similar words
Where it appears
Matthew · 4
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Matthew 12:31 βλασφημία βλασφημία blasphemy
Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven.
Here: Speech that defames or reviles, whether aimed at people or at God. Even reviling God is listed here among the things that will be forgiven.
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Matthew 15:19 βλασφημίαι. slanders.
For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander.
Here: Speech that injures someone's reputation. Coming right after false testimony in a list of wrongs against the neighbor, it most likely means slander against people here, though speech against God is not excluded.
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Matthew 26:65 βλασφημίαν blasphemy
At this, the high priest tore his clothes and declared, “He has blasphemed! Why do we need any more witnesses? Look, now you have heard the blasphemy.
Here: This noun picks up the verb at the start of the speech, so the speech is framed by "he blasphemed … the blasphemy." Jesus' claim in 26:64 is now labelled as speech that insults God.
Mark · 3
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Mark 3:28 βλασφημίαι blasphemies
Truly I tell you, the sons of men will be forgiven all sins and blasphemies, as many as they utter.
Here: Speech that insults and damages someone's reputation. It can be aimed at people or at God. Jesus picks the word on purpose, because his opponents have just been slandering him (3:22).
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Mark 7:22 βλασφημία, slander,
greed, wickedness, deceit, debauchery, envy, slander, arrogance, and foolishness.
Here: Speech that damages someone's reputation: reviling, slander, verbal abuse. It can be aimed at God or at people. In this list of sins against others, slander of people is probably the main sense.
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Mark 14:64 βλασφημίας· blasphemy;
You have heard the blasphemy. What is your verdict?” And they all condemned Him as deserving of death.
Luke · 1
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Luke 5:21 βλασφημίας; blasphemies?
But the scribes and Pharisees began thinking to themselves, “Who is this man who speaks blasphemy? Who can forgive sins but God alone?”
John · 1
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John 10:33 βλασφημίας, blasphemy,
“We are not stoning You for any good work,” said the Jews, “but for blasphemy, because You, who are a man, make Yourself out to be God.”
Here: Speech that insults or dishonours someone. Aimed at God, it is speech that robs God of his honour. Here it is a legal and religious charge carrying the death penalty under Leviticus 24:16.
Ephesians · 1
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Ephesians 4:31 βλασφημία slander
Get rid of all bitterness, rage and anger, outcry and slander, along with every form of malice.
Here: Speech that damages another person's name: insult, abuse, slander. Here it is aimed at fellow believers, not at God.
Colossians · 1
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Colossians 3:8 βλασφημίαν, slander,
But now you must put aside all such things as these: anger, rage, malice, slander, and filthy language from your lips.
Here: Speech meant to damage someone's reputation: reviling, slander, verbal abuse. The context is about how believers treat one another (v. 9 'do not lie to one another'), so the target here is mainly other people, not God.
1 Timothy · 1
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1 Timothy 6:4 βλασφημίαι, slander,
he is conceited and understands nothing. Instead, he has an unhealthy interest in controversies and disputes about words, out of which come envy, strife, abusive talk, evil suspicions,
Here: Plural: "slanders" or "abusive words." Here this is speech that damages other people's reputations within the dispute, not mainly speech against God.
Jude · 1
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Jude 1:9 βλασφημίας blasphemy
But even the archangel Michael, when he disputed with the devil over the body of Moses, did not presume to bring a slanderous charge against him, but said, “The Lord rebuke you!”
Here: 'Of slander': either a slanderous, abusive verdict or a verdict *for* slander (see debates). It echoes verse 8 ('they slander glorious beings') and verse 10 ('they slander what they do not understand').
Revelation · 5
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Revelation 2:9 βλασφημίαν slander
I know your affliction and your poverty—though you are rich! And I am aware of the slander of those who falsely claim to be Jews, but are in fact a synagogue of Satan.
Here: Speech that damages someone's reputation. Here it most likely means accusations against the believers, possibly reports to the city or Roman authorities, though it may also include insults against Christ. The devil (literally "the slanderer") putting them in prison in the next verse suggests the words had legal consequences.
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Revelation 13:1 βλασφημίας. of blasphemy.
Then I saw a beast with ten horns and seven heads rising out of the sea. There were ten royal crowns on its horns and blasphemous names on its heads.
Here: Slander. Aimed at God, it means taking honours and titles that belong to God alone. The beast's names insult God by claiming divinity for itself (compare 13:5–6).
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Revelation 13:5 βλασφημίας blasphemies
The beast was given a mouth to speak arrogant and blasphemous words, and authority to act for 42 months.
Here: Defaming, insulting speech. Here it is aimed at God, his name, his dwelling and his people (v. 6), above all by claiming honours that belong to God alone (compare the 'blasphemous names' on its heads in 13:1).
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Revelation 13:6 βλασφημίας blasphemies
And the beast opened its mouth to speak blasphemies against God and to slander His name and His tabernacle—those who dwell in heaven.
Here: The plural means repeated acts of defaming speech. It picks up the 'names of blasphemy' written on the beast's heads (13:1) and the 'blasphemies' of verse 5.
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Revelation 17:3 βλασφημίας, of blasphemy,
And the angel carried me away in the Spirit into a wilderness, where I saw a woman sitting on a scarlet beast that was covered with blasphemous names and had seven heads and ten horns.
Here: "Of blasphemy": titles that insult God's honour by claiming what belongs to him alone. To John's readers this would suggest imperial titles such as "god", "son of god", "lord", "saviour" and "Augustus" (Greek Sebastos, "the revered one").
Word data: STEPBible.org (CC BY 4.0), main text only.