Mark 3:29

And whoever should defame against the Holy Spirit has no remission forever, but he is liable to the penalty of eternal condemnation.

Matthew 25:46

And these shall go away into everlasting punishment: and the just into eternal life.

Mark 12:40

They eating in widows' houses, and praying long for a pretext: these shall receive more abundant judgment.

Luke 12:10

And every one who shall say a word against the Son of man, it shall be remitted to him: and to him blaspheming against the Holy Spirit, it shall not be remitted.

Matthew 12:31-32

For this I say to you, All sin and blasphemy shall be let go to men; but the blasphemy of the Spirit shall not be let go to men.

2 Thessalonians 1:9

Who shall undergo punishment, eternal ruin from the face of the Lord, and from the glory of his power;

Jude 1:7

As Sodom and Gomorrha and the cities about them, debauched in like manner to these, and having gone away after other flesh, are set before a sample of eternal fire, enduring punishment.

Jude 1:13

Fierce waves of the sea, foaming out their own shames; wandering stars, to whom the obseurity of darkness has been kept forever.

Treasury of Scripture Knowledge

Summary

But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation:

General references

Bible References

But is

Mark 12:40
They eating in widows' houses, and praying long for a pretext: these shall receive more abundant judgment.
Matthew 25:46
And these shall go away into everlasting punishment: and the just into eternal life.
2 Thessalonians 1:9
Who shall undergo punishment, eternal ruin from the face of the Lord, and from the glory of his power;
Jude 1:7
As Sodom and Gomorrha and the cities about them, debauched in like manner to these, and having gone away after other flesh, are set before a sample of eternal fire, enduring punishment.

General references

Luke 12:10
And every one who shall say a word against the Son of man, it shall be remitted to him: and to him blaspheming against the Holy Spirit, it shall not be remitted.