Sin: The Unpardonable
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Matthew 12:31
Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven.
Mark 3:29
But whoever blasphemes against the Holy Spirit will never be forgiven; he is guilty of eternal sin.”
Luke 12:10
And everyone who speaks a word against the Son of Man will be forgiven, but whoever blasphemes against the Holy Spirit will not be forgiven.
1 John 5:16, 17
If anyone sees his brother committing a sin not leading to death, he should ask God, who will give life to those who commit this kind of sin. There is a sin that leads to death; I am not saying he should ask regarding that sin. / All unrighteousness is sin, yet there is sin that does not lead to death.