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.

Luke 12:10

And everyone who speaks a word against the Son of Man will be forgiven; but he who blasphemes against the Holy Spirit will not be forgiven.

Mark 3:28-30

Truly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they utter;

Acts 7:51

"You stiff-necked people, uncircumcised in heart and ears, you always resist the Holy Spirit. You are doing just as your fathers did.

Hebrews 6:4

For it is impossible for those who have once been enlightened, who have tasted the heavenly gift, and have become partakers of the Holy Spirit,

Hebrews 10:26

For if we sin deliberately after we have received the knowledge of the truth, there no longer remains a sacrifice for sins,

Hebrews 10:29

How much severer punishment do you think a man will deserve who has trampled under foot the Son of God, and has regarded as an unclean thing the blood of the covenant by which he was sanctified, and has insulted the Spirit of grace?

1 John 1:9

If we confess our sins, he is faithful and just, and will forgive us our sins and cleanse us from all unrighteousness.

1 John 5:16

If anyone sees his brother commit a sin that does not lead to death, he will ask, and God will give him life for those whose sin is not leading to death. There is sin leading to death. I do not say that he should pray about that.

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.

1 Timothy 1:13-15

Even though I was formerly a blasphemer and a persecutor and a violent aggressor, I was shown mercy because I acted ignorantly in unbelief;

1 John 2:1-2

My little children, I write this to you so that you may not sin. But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous.

Treasury of Scripture Knowledge

Summary

Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men.

General references

Bible References

All

1 Timothy 1:13
Even though I was formerly a blasphemer and a persecutor and a violent aggressor, I was shown mercy because I acted ignorantly in unbelief;
Hebrews 6:4
For it is impossible for those who have once been enlightened, who have tasted the heavenly gift, and have become partakers of the Holy Spirit,
1 John 1:9
If we confess our sins, he is faithful and just, and will forgive us our sins and cleanse us from all unrighteousness.
1 John 2:1
My little children, I write this to you so that you may not sin. But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous.

But

Mark 3:28
Truly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they utter;
Luke 12:10
And everyone who speaks a word against the Son of Man will be forgiven; but he who blasphemes against the Holy Spirit will not be forgiven.
Acts 7:51
"You stiff-necked people, uncircumcised in heart and ears, you always resist the Holy Spirit. You are doing just as your fathers did.
1 John 5:16
If anyone sees his brother commit a sin that does not lead to death, he will ask, and God will give him life for those whose sin is not leading to death. There is sin leading to death. I do not say that he should pray about that.

General references

Mark 3:28
Truly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they utter;
Luke 12:10
And everyone who speaks a word against the Son of Man will be forgiven; but he who blasphemes against the Holy Spirit will not be forgiven.