Unpardonable Sin: General Scriptures Concerning
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2 Kings 24:4
and also for the innocent blood he had shed. For he had filled Jerusalem with innocent blood, and the LORD was unwilling to forgive.
Matthew 12:31, 32
Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven. / Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the one to come.
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.
Hebrews 6:4–6
It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, / who have tasted the goodness of the word of God and the powers of the coming age— / and then have fallen away—to be restored to repentance, because they themselves are crucifying the Son of God all over again and subjecting Him to open shame.
1 John 5:16
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.