John 15 [.mp3]

6 If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned.

Hebrews 10 [.mp3]

26 For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
… 
38 Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.

2 Peter 2 [.mp3]

20 For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.