"I know your works, that you are neither cold nor hot. I could wish you were cold or hot. So then, because you are lukewarm, and neither cold nor hot. I will vomit you out of My mouth. .....As many as I love, I rebuke and chasten. Therfore be zealous and repent."
Revelation 3:15,16 & 20.
The Book of Revelation confronts "the spirit of this age" more than any other book of the Bible. It presents the humanistic world view, which has taken root even in those who call themselves 'born again' Christians.