He goes even further in Revelation 3 saying, I know your works, that you are neither cold nor hot: I would prefer you were cold or hot. So then because you are lukewarm, and neither cold nor hot, I will spue you out of my mouth. 
 Because you say, I am rich, and increased with goods, and have need of nothing; and don't know that you are wretched, and miserable, and poor, and blind, and naked...These are the words that came before Billy Graham's edited speech at his San Diego crusade referenced here: http://en.wikipedia.org/wiki/User_talk:Ground_Zero#19:11_.26_9.2F11 here