Mark 9:48-49
where 'their worm does not die, and the fire is not put out.'
Hebrews 6:4-8
For if those who were once for all brought into the Light, and learned to appreciate the gift from Heaven, and came to share in the Holy Spirit,
Hebrews 10:26-31
Remember, if we sin willfully after we have gained a full knowledge of the Truth, there can be no further sacrifice for sin;
2 Peter 2:19-22
They promise them freedom, while they themselves are slaves to corrupt habits; for a man is the slave of anything to which he gives way.
Revelation 21:8
But as for cowards, unbelievers, the degraded, murderers, the impure, sorcerers, idolaters, and all liars--their place will be in the burning lake of fire and sulphur. That is the Second Death.'
Revelation 22:11
Let the wrong-doer continue to do wrong; the filthy-minded man continue to be filthy; the righteous man continue to act righteously; and the holy-minded man continue to be holy.'