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The Bible has something to say about such "Christians."
" For if after they have escaped the pollutions 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.
For it had been better for them not to have known the way
of righteousness, than, after they have known it, to turn
from the holy commandment delivered to them. "
2 Peter 2 American King James Version
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