Matthew 12:31

Because of this I say to you, all sin and evil speaking shall be forgiven to men, but the evil speaking of the Spirit shall not be forgiven to men.

Luke 12:10

and every one whoever shall say a word to the Son of Man, it shall be forgiven to him, but to him who to the Holy Spirit did speak evil, it shall not be forgiven.

Mark 3:28-30

'Verily I say to you, that all the sins shall be forgiven to the sons of men, and evil speakings with which they might speak evil,

Isaiah 1:18

Come, I pray you, and we reason, saith Jehovah, If your sins are as scarlet, as snow they shall be white, If they are red as crimson, as wool they shall be!

Acts 7:51

Ye stiff-necked and uncircumcised in heart and in ears! ye do always the Holy Spirit resist; as your fathers -- also ye;

Hebrews 6:4

for it is impossible for those once enlightened, having tasted also of the heavenly gift, and partakers having became of the Holy Spirit,

Hebrews 10:26

For we -- wilfully sinning after the receiving the full knowledge of the truth -- no more for sins doth there remain a sacrifice,

Hebrews 10:29

of how much sorer punishment shall he be counted worthy who the Son of God did trample on, and the blood of the covenant did count a common thing, in which he was sanctified, and to the Spirit of the grace did despite?

1 John 1:9

if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;

1 John 5:16

If any one may see his brother sinning a sin not unto death, he shall ask, and He shall give to him life to those sinning not unto death; there is sin to death, not concerning it do I speak that he may beseech;

Isaiah 55:7

Forsake doth the wicked his way, And the man of iniquity his thoughts, And he returneth to Jehovah, and He pitieth him, And unto our God for He multiplieth to pardon.

Ezekiel 33:11

Say unto them, I live -- an affirmation of the Lord Jehovah, I delight not in the death of the wicked, But -- in the turning of the wicked from his way, And he hath lived, Turn back, turn back, from your evil ways, Yea, why do ye die, O house of Israel?

Matthew 12:31-32

Because of this I say to you, all sin and evil speaking shall be forgiven to men, but the evil speaking of the Spirit shall not be forgiven to men.

1 Timothy 1:13-15

who before was speaking evil, and persecuting, and insulting, but I found kindness, because, being ignorant, I did it in unbelief,

1 John 2:1-2

My little children, these things I write to you, that ye may not sin: and if any one may sin, an advocate we have with the Father, Jesus Christ, a righteous one,

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, I pray you, and we reason, saith Jehovah, If your sins are as scarlet, as snow they shall be white, If they are red as crimson, as wool they shall be!
Isaiah 55:7
Forsake doth the wicked his way, And the man of iniquity his thoughts, And he returneth to Jehovah, and He pitieth him, And unto our God for He multiplieth to pardon.
Ezekiel 33:11
Say unto them, I live -- an affirmation of the Lord Jehovah, I delight not in the death of the wicked, But -- in the turning of the wicked from his way, And he hath lived, Turn back, turn back, from your evil ways, Yea, why do ye die, O house of Israel?
1 Timothy 1:13
who before was speaking evil, and persecuting, and insulting, but I found kindness, because, being ignorant, I did it in unbelief,
Hebrews 6:4
for it is impossible for those once enlightened, having tasted also of the heavenly gift, and partakers having became of the Holy Spirit,
1 John 1:9
if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;
1 John 2:1
My little children, these things I write to you, that ye may not sin: and if any one may sin, an advocate we have with the Father, Jesus Christ, a righteous one,

But

Mark 3:28
'Verily I say to you, that all the sins shall be forgiven to the sons of men, and evil speakings with which they might speak evil,
Luke 12:10
and every one whoever shall say a word to the Son of Man, it shall be forgiven to him, but to him who to the Holy Spirit did speak evil, it shall not be forgiven.
Acts 7:51
Ye stiff-necked and uncircumcised in heart and in ears! ye do always the Holy Spirit resist; as your fathers -- also ye;
1 John 5:16
If any one may see his brother sinning a sin not unto death, he shall ask, and He shall give to him life to those sinning not unto death; there is sin to death, not concerning it do I speak that he may beseech;

General references

Mark 3:28
'Verily I say to you, that all the sins shall be forgiven to the sons of men, and evil speakings with which they might speak evil,
Luke 12:10
and every one whoever shall say a word to the Son of Man, it shall be forgiven to him, but to him who to the Holy Spirit did speak evil, it shall not be forgiven.