Matthew 12:31

For this reason I say unto you, Every sin and injurious speaking shall be forgiven to men, but speaking injuriously of the Spirit shall not be forgiven to men.

Luke 12:10

and whoever shall say a word against the Son of man it shall be forgiven him; but to him that speaks injuriously against the Holy Spirit it shall not be forgiven.

Mark 3:28-30

Verily I say unto you, that all sins shall be forgiven to the sons of men, and all the injurious speeches with which they may speak injuriously;

Isaiah 1:18

Come now, let us reason together, saith Jehovah: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.

Acts 7:51

O stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Spirit; as your fathers, ye also.

Hebrews 6:4

For it is impossible to renew again to repentance those once enlightened, and who have tasted of the heavenly gift, and have been made partakers of the Holy Spirit,

Hebrews 10:26

For where we sin wilfully after receiving the knowledge of the truth, there no longer remains any sacrifice for sins,

Hebrews 10:29

of how much worse punishment, think ye, shall he be judged worthy who has trodden under foot the Son of God, and esteemed the blood of the covenant, whereby he has been sanctified, common, and has insulted the Spirit of grace?

1 John 1:9

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

1 John 5:16

If any one see his brother sinning a sin not unto death, he shall ask, and he shall give him life, for those that do not sin unto death. There is a sin to death: I do not say of that that he should make a request.

Isaiah 55:7

Let the wicked forsake his way, and the unrighteous man his thoughts; and let him return unto Jehovah, and he will have mercy upon him; and to our God, for he will abundantly pardon.

Ezekiel 33:11

Say unto them, As I live, saith the Lord Jehovah, I have no pleasure in the death of the wicked; but that the wicked turn from his way and live. Turn ye, turn ye from your evil ways; for why will ye die, O house of Israel?

Matthew 12:31-32

For this reason I say unto you, Every sin and injurious speaking shall be forgiven to men, but speaking injuriously of the Spirit shall not be forgiven to men.

1 Timothy 1:13-15

who before was a blasphemer and persecutor, and an insolent overbearing man: but mercy was shewn me because I did it ignorantly, in unbelief.

1 John 2:1-2

My children, these things I write to you in order that ye may not sin; and if any one sin, we have a patron 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

Isaiah 1:18
Come now, let us reason together, saith Jehovah: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
Isaiah 55:7
Let the wicked forsake his way, and the unrighteous man his thoughts; and let him return unto Jehovah, and he will have mercy upon him; and to our God, for he will abundantly pardon.
Ezekiel 33:11
Say unto them, As I live, saith the Lord Jehovah, I have no pleasure in the death of the wicked; but that the wicked turn from his way and live. Turn ye, turn ye from your evil ways; for why will ye die, O house of Israel?
1 Timothy 1:13
who before was a blasphemer and persecutor, and an insolent overbearing man: but mercy was shewn me because I did it ignorantly, in unbelief.
Hebrews 6:4
For it is impossible to renew again to repentance those once enlightened, and who have tasted of the heavenly gift, and have been made partakers of the Holy Spirit,
1 John 1:9
If we confess our sins, he is faithful and righteous to forgive us our sins, and cleanse us from all unrighteousness.
1 John 2:1
My children, these things I write to you in order that ye may not sin; and if any one sin, we have a patron with the Father, Jesus Christ the righteous;

But

Mark 3:28
Verily I say unto you, that all sins shall be forgiven to the sons of men, and all the injurious speeches with which they may speak injuriously;
Luke 12:10
and whoever shall say a word against the Son of man it shall be forgiven him; but to him that speaks injuriously against the Holy Spirit it shall not be forgiven.
Acts 7:51
O stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Spirit; as your fathers, ye also.
1 John 5:16
If any one see his brother sinning a sin not unto death, he shall ask, and he shall give him life, for those that do not sin unto death. There is a sin to death: I do not say of that that he should make a request.

General references

Mark 3:28
Verily I say unto you, that all sins shall be forgiven to the sons of men, and all the injurious speeches with which they may speak injuriously;
Luke 12:10
and whoever shall say a word against the Son of man it shall be forgiven him; but to him that speaks injuriously against the Holy Spirit it shall not be forgiven.