Matthew 12:31

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

Luke 12:10

And whosoever shall speak against the Son of man, it shall be forgiven him: but to him that blasphemeth against the Holy Ghost, it shall not be forgiven.

Mark 3:28-30

Verily I say to you, All sins shall be forgiven the sons of men and blasphemies wherewith soever they shall blaspheme.

Acts 7:51

as your fathers, so do ye.

Hebrews 6:4

For it is impossible for those who were once inlightened, and have tasted the heavenly gift, and been made partakers of the Holy Ghost,

Hebrews 10:26

For when we sin wilfully after receiving the knowledge of the truth, there remaineth no more sacrifice for sins,

Hebrews 10:29

Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and counted the blood of the covenant, by which he hath been sanctified, an unholy thing, and done despite to the spirit of grace?

1 John 1:9

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

1 John 5:16

If any one see his brother sin a sin which is not unto death, let him ask, and he will give him life for them that sin not unto death.

Matthew 12:31-32

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

1 Timothy 1:13-15

having put me into the ministry, Who was before a blasphemer, and a persecuter, and a reviler; but I obtained mercy, because I did it ignorantly in unbelief.

1 John 2:1-2

My beloved children, I write these things to you, that ye may not sin. But if any one sin, we have an advocate with the Father, Jesus Christ, the righteous, And he is the propitiation for our sins;

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
having put me into the ministry, Who was before a blasphemer, and a persecuter, and a reviler; but I obtained mercy, because I did it ignorantly in unbelief.
Hebrews 6:4
For it is impossible for those who were once inlightened, and have tasted the heavenly gift, and been made partakers of the Holy Ghost,
1 John 1:9
If we confess our sins, he is faithful, and just to forgive us our sins, and to cleanse us from all unrighteousness.
1 John 2:1
My beloved children, I write these things to you, that ye may not sin. But if any one sin, we have an advocate with the Father, Jesus Christ, the righteous, And he is the propitiation for our sins;

But

Mark 3:28
Verily I say to you, All sins shall be forgiven the sons of men and blasphemies wherewith soever they shall blaspheme.
Luke 12:10
And whosoever shall speak against the Son of man, it shall be forgiven him: but to him that blasphemeth against the Holy Ghost, it shall not be forgiven.
Acts 7:51
as your fathers, so do ye.
1 John 5:16
If any one see his brother sin a sin which is not unto death, let him ask, and he will give him life for them that sin not unto death.

General references

Mark 3:28
Verily I say to you, All sins shall be forgiven the sons of men and blasphemies wherewith soever they shall blaspheme.
Luke 12:10
And whosoever shall speak against the Son of man, it shall be forgiven him: but to him that blasphemeth against the Holy Ghost, it shall not be forgiven.