King James Bible Dictionary

In the sense of speaking evil of God this word is found in Psalms 74:18; Isaiah 52:5; Romans 2:24; Revelation 13:1, 6; 16:9, 11, 21. It denotes also any kind of calumny, or evil-speaking, or abuse (1 Kings 21:10; Acts 13:45; 18:6, etc.). Our Lord was accused of blasphemy when he claimed to be the Son of God (Matthew 26:65; comp. Matthew 9:3; Mark 2:7). They who deny his Messiahship blaspheme Jesus (Luke 22:65; John 10:36).

Blasphemy against the Holy Ghost (Matthew 12:31, 32; Mark 3:28, 29; Luke 12:10) is regarded by some as a continued and obstinate rejection of the gospel, and hence is an unpardonable sin, simply because as long as a sinner remains in unbelief he voluntarily excludes himself from pardon. Others regard the expression as designating the sin of attributing to the power of Satan those miracles which Christ performed, or generally those works which are the result of the Spirit's agency.

General references
Exodus 20:7; Deuteronomy 5:11; Leviticus 19:12; Leviticus 22:32; Leviticus 24:10-16; 2 Kings 19:22; Isaiah 37:23; 2 Chronicles 32:19; Job 9:16-18; Job 9:34-35; Job 10:2-7; Job 13:7-9; Job 13:25-27; Job 15:13; Job 15:25-26; Job 16:9; Job 16:11-14; Job 19:6-7; Job 19:21-22; Job 21:13-14; Job 22:12-14; Job 22:17; Job 30:21; Job 33:10-11; Job 34:5-6; Job 34:9; Job 34:16-19; Job 34:37; Job 37:20; Job 40:2; Psalms 5:1-2; Psalms 10:11; Psalms 10:13; Psalms 50:21; Psalms 73:9; Psalms 73:11; Psalms 74:18; Psalms 78:19-20; Psalms 94:7; Psalms 139:20; Proverbs 30:7-9; Isaiah 8:21-22; Isaiah 29:15-16; Isaiah 36:15; Isaiah 36:18; Isaiah 36:20-21; Isaiah 37:10; Isaiah 40:27; Isaiah 45:9; Isaiah 52:5; Isaiah 65:7; Jeremiah 4:10; Jeremiah 17:15; Jeremiah 20:7; Jeremiah 23:10; Ezekiel 8:12; Ezekiel 9:9; Ezekiel 18:25; Ezekiel 20:27; Ezekiel 33:17-20; Ezekiel 35:12-13; Daniel 7:25; Daniel 11:36-37; Hosea 7:13; Zephaniah 1:12; Zech 5:3-4; Malachi 3:13-14; Matthew 10:25; Matthew 12:31-32; Mark 3:29-30; Luke 12:10; Matthew 15:19; Mark 7:21-23; John 19:7; Romans 2:24; 2 Samuel 12:14; 1 Corinthians 12:3; Colossians 3:8; 2 Thessalonians 2:4; 2 Timothy 3:2; Revelation 16:11; Hebrews 10:29; James 2:7; James 3:10; James 5:12; 2 Peter 3:3-4; Revelation 13:1; Revelation 13:6; Revelation 16:9; Revelation 16:21; Revelation 17:3

Prophecy of
Revelation 13:1; Revelation 13:5-6; Revelation 16:9; Revelation 16:11; Revelation 16:21; Revelation 17:3

Instances of:

The depraved son of Shelomith, who, in an altercation with an Israelite, cursed God
Leviticus 24:10-16

Of the Israelites, in murmuring against God
Numbers 21:5-6

Infidels, who used the adultery of David as an occasion to blaspheme
2 Samuel 12:14

Shimei, in his malice toward David
2 Samuel 16:5

Rab-Shakeh, in the siege of Jerusalem
2 Kings 18:22; 2 Kings 12:19; Isaiah 36:15-20; Isaiah 37:10-33

Job's wife, when she exhorted Job to curse God and die
Job 2:9

Peter, when accused of being a disciple of Jesus
Matthew 26:74; Mark 14:71

The revilers of Jesus, when he was crucified
Matthew 27:40-44; Matthew 27:63

The early Christians, persecuted by Saul of Tarsus, compelled to blaspheme the name of Jesus
Acts 26:11; 1 Timothy 1:13

Two disciples, Hymenaeus and Alexander, who were delivered unto Satan that they might learn not to blaspheme
1 Timothy 1:20

Man of sin
2 Thessalonians 2:3-4

Backslidden Ephesians
Revelation 2:9

False indictments for:

False indictments for:
1 Kings 21:13

Of Jesus
Matthew 26:65; Mark 14:58; Luke 22:70-71; John 19:7

Of Stephen
Acts 6:11; Acts 6:13

Of Jesus falsely accused of, previously to his trial
Mark 2:7; Luke 5:21

in its technical English sense, signifies the speaking evil of God and in this sense it is found (Psalms 74:18; Isaiah 52:5; Romans 2:24) etc. But according to its derivation it may mean any species of calumny and abuse: see (1 Kings 21:10; Acts 18:6; Jude 1:9) etc. Blasphemy was punished by stoning, which was inflicted on the son of Shelomith. (Leviticus 24:11) On this charge both our Lord and St. Stephen were condemned to death by the Jews. The blasphemy against the Holy Ghost, (Matthew 12:32; Mark 3:28) consisted in attributing to the power of Satan those unquestionable miracles which Jesus performed by "the finger of God" and the power of the Holy Spirit. It is plainly such a state of wilful, determined opposition to God and the Holy Spirit that no efforts will avail to lead to repentance. Among the Jews it was a sin against God answering to treason in our times.

BLAS'PHEMY, noun An indignity offered to God by words or writing; reproachful, contemptuous or irreverent words uttered impiously against Jehovah.

Blasphemy is an injury offered to God, by denying that which is due and belonging to him, or attributing to him that which is not agreeable to his nature.

In the middle ages, blasphemy was used to denote simply the blaming or condemning of a person or thing. Among the Greeks, to blaspheme was to use words of ill omen, which they were careful to avoid.

1. That which derogates from the prerogatives of God. Mark 2:1.