Mark 9:48-49
where 'their worm does not die, and the fire is not quenched.'
Hebrews 6:4-8
For it is impossible for those who have once been enlightened, who have tasted the heavenly gift, and have become partakers of the Holy Spirit,
Hebrews 10:26-31
For if we sin deliberately after we have received the knowledge of the truth, there no longer remains a sacrifice for sins,
2 Peter 2:19-22
They promise them freedom, while they themselves are slaves of corruption; for whatever overcomes a man, to that he is enslaved.
Revelation 21:8
But as for the cowardly, the unbelieving, the immoral, as for murderers, fornicators, sorcerers, idolaters, and all liars, their lot will be in the lake that burns with fire and sulfur, which is the second death."
Revelation 22:11
He who does wrong, let him do wrong still; and he who is filthy, let him be filthy still; and he who does right, let him do right still; and he who is holy, let him be holy still."