2 Kings 24:4
And also for the innocent blood that he shed: for he filled Jerusalem with innocent blood; which the LORD would not pardon.
Nave's Topical Index—AKJV

Matthew 12:31,32
Why I say to you, All manner of sin and blasphemy shall be forgiven to men: but the blasphemy against the Holy Ghost shall not be forgiven to men.
Nave's Topical Index—AKJV

Luke 12:10
And whoever shall speak a word against the Son of man, it shall be forgiven him: but to him that blasphemes against the Holy Ghost it shall not be forgiven.
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Hebrews 6:4-6
For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
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1 John 5:16
If any man see his brother sin a sin which is not to death, he shall ask, and he shall give him life for them that sin not to death. There is a sin to death: I do not say that he shall pray for it.
Nave's Topical Index—AKJV