2 Peter 2:20-22
Now, if, having fled away from the pollutions of the world, through the knowledge of the Lord and Saviour Jesus Christ, and being again entangled, they are overcome by them; their last condition is worse than the first.
1 John 5:16
If any one see his brother sinning a sin, not to death, let him ask, and he will grant to him life, for those who sin not to death. There is a sin leading to death. I do not say concerning it, that you should ask.
Jude 1:12-13
These men are spots in love feasts, when they feast with you, feeding themselves without fear. They are clouds without water, carried about of winds: withered autumnal trees without fruit; twice dead; rooted out;