Hebrews 6:4-8
For in the case of those who have been once for all enlightened and have tasted of the heavenly gift,
2 Peter 2:20
For if, after having escaped the pollutions of the world, through the knowledge of our Lord and Saviour Jesus Christ, men are again entangled in them and overpowered, their last state is become worse than their first.
2 Peter 2:22
In their case it has happened according to the true proverb, The dog returns again to his own vomit, and The sow, after washing, to her wallowing in the mire.
Jude 1:12
These are they who are stains upon your love-feasts; when they feast sumptuously without scruple, looking after none but themselves. They are clouds without water, driven along by the winds; trees of autumn, fruitless, doubly dead, torn up by the roots,