Leviticus 13:55
And the priest shall look on the disease, after that it is washed: and, behold, if the disease has not changed its color, though the disease is not spread; it is unclean; you shall burn it in the fire; it continues eating away, whether the damage is inside or outside.
Ezekiel 24:13
In your filthiness is lewdness: because I have purged you, and you were not purged, you shall not be purged from your filthiness any more, till I have caused my fury to rest upon you.
Hebrews 6:4-8
For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Spirit,
2 Peter 1:9
But he that lacks these things is blind, and cannot see afar off, and has forgotten that he was purged from his old sins.
2 Peter 2:20-22
For if after they have escaped the defilements of the world through the knowledge of the Lord and Savior Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.