Mark 3:29

But he who blasphemes against the Holy Spirit never shall have forgiveness, but is liable to eternal condemnation.

Matthew 25:46

And these shall go away into everlasting punishment, but the righteous into everlasting life.

Mark 12:40

who devour widows' houses, and as a pretense make long prayers. These shall receive greater condemnation.

Luke 12:10

And whoever shall speak a word against the Son of Man, it shall be forgiven him. But to him who blasphemes against the Holy Spirit, it shall not be forgiven.

Matthew 12:31-32

Therefore I say to you, All kinds of sin and blasphemy shall be forgiven to men, but the blasphemy against the Holy Spirit shall not be forgiven to men.

2 Thessalonians 1:9

who shall be punished with everlasting destruction from the presence of the Lord and from the glory of His power,

Jude 1:7

as Sodom and Gomorrah, and the cities around them, in like manner to these, committing fornication, and going away after other flesh, laid down an example before-times, undergoing vengeance of everlasting fire.

Jude 1:13

wild waves of the sea foaming up their shames; wandering stars for whom blackness 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
who devour widows' houses, and as a pretense make long prayers. These shall receive greater condemnation.
Matthew 25:46
And these shall go away into everlasting punishment, but the righteous into everlasting life.
2 Thessalonians 1:9
who shall be punished with everlasting destruction from the presence of the Lord and from the glory of His power,
Jude 1:7
as Sodom and Gomorrah, and the cities around them, in like manner to these, committing fornication, and going away after other flesh, laid down an example before-times, undergoing vengeance of everlasting fire.

General references

Luke 12:10
And whoever shall speak a word against the Son of Man, it shall be forgiven him. But to him who blasphemes against the Holy Spirit, it shall not be forgiven.