Matthew 12:31

I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.

Luke 12:10

Everyone also who says a word against the Son of man will be forgiven for it, but he who blasphemes against the holy Spirit will never be forgiven.

Mark 3:28-30

I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,

Acts 7:51

Stiff-necked, uncircumcised in heart and ear, you are always resisting the holy Spirit! As with your fathers, so with you!

Hebrews 6:4

For in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,

Hebrews 10:26

For if we sin deliberately, after receiving the knowledge of the Truth, there is no longer any sacrifice for sins left,

Hebrews 10:29

How much heavier, do you suppose, will be the punishment assigned to him who has spurned the Son of God, who has profaned the covenant-blood with which he was sanctified, who has insulted the Spirit of grace?

1 John 1:9

if we confess our sins, he is faithful and just, he forgives our sins and cleanses us from all iniquity;

1 John 5:16

If anyone notices his brother committing a sin which is not deadly, he will ask and obtain life for him ??for anyone who does not commit a deadly sin. There is such a thing as deadly sin; I do not mean he is to pray for that.

Matthew 12:31-32

I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.

1 Timothy 1:13-15

though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;

1 John 2:1-2

My dear children, I am writing this to you that you may not sin; but if anyone does sin, we have an advocate with the Father in Jesus Christ the just;

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
though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;
Hebrews 6:4
For in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,
1 John 1:9
if we confess our sins, he is faithful and just, he forgives our sins and cleanses us from all iniquity;
1 John 2:1
My dear children, I am writing this to you that you may not sin; but if anyone does sin, we have an advocate with the Father in Jesus Christ the just;

But

Mark 3:28
I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,
Luke 12:10
Everyone also who says a word against the Son of man will be forgiven for it, but he who blasphemes against the holy Spirit will never be forgiven.
Acts 7:51
Stiff-necked, uncircumcised in heart and ear, you are always resisting the holy Spirit! As with your fathers, so with you!
1 John 5:16
If anyone notices his brother committing a sin which is not deadly, he will ask and obtain life for him ??for anyone who does not commit a deadly sin. There is such a thing as deadly sin; I do not mean he is to pray for that.

General references

Mark 3:28
I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,
Luke 12:10
Everyone also who says a word against the Son of man will be forgiven for it, but he who blasphemes against the holy Spirit will never be forgiven.