Hebrews 6:4-8

For in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,

2 Peter 1:9

whereas he who has not these by him is blind, shortsighted, oblivious that he has been cleansed from his erstwhile sins.

2 Peter 2:20-22

After escaping the pollutions of the world by the knowledge of our Lord and saviour Jesus Christ, if they get entangled and overpowered again, the last state is worse for them than the first.

Treasury of Scripture Knowledge

Summary

And the priest shall look on the plague, after that it is washed: and, behold, if the plague have not changed his colour, and the plague be not spread; it is unclean; thou shalt burn it in the fire; it is fret inward, whether it be bare within or without.

Bible References

After

Hebrews 6:4
For in the case of people who have been once enlightened, who tasted the heavenly Gift, who participated in the holy Spirit,
2 Peter 1:9
whereas he who has not these by him is blind, shortsighted, oblivious that he has been cleansed from his erstwhile sins.
2 Peter 2:20
After escaping the pollutions of the world by the knowledge of our Lord and saviour Jesus Christ, if they get entangled and overpowered again, the last state is worse for them than the first.