Mark 3:29
but whosoever blasphemes against the Holy Spirit has no forgiveness forever, but is guilty of an eternal sin;
Matthew 25:46
"And these shall go away into age-lasting punishment, but the righteous into age-lasting life."
Mark 12:40
who devour widows' houses, and for a pretense make long prayers; these shall receive greater condemnation."
Luke 12:10
And every one who shall say 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, every sin and blasphemy will be forgiven to men, but the blasphemy against the Holy Spirit shall not be forgiven.
2 Thessalonians 1:9
who, indeed, shall pay a penalty, eternal destruction from the presence of the Lord and from the glory of His might,
Jude 1:7
Even as Sodom and Gomorrah, and the cities about them, having in like manner with these given themselves over to fornication, and going away after other flesh, are set forth as an example, suffering the punishment of eternal fire.
Jude 1:13
wild waves of the sea, foaming out their own ignominies; wandering stars, for whom the blackness of the darkness has been reserved forever.