Christian author Warren Smith's book "Deceived on Purpose" warns about the serious New Age implications of Pastor Rick Warren's book "The Purpose Driven Life". Smith takes the reader into the inner workings of today's evangelical world as he explores the questionable interconnections of several of its top leaders. As Rick Warren goes worldwide with his purpose-driven Global Peace Plan, Smith presents an in-depth examination of this mega-church pastor's spiritual agenda. He explains how Rick Warren's Peace Plan could eventually merge with the New Age Peace Plan that is being similarly presented by key New Age leaders.
Smith contends that Crystal Cathedral Pastor and New Age sympathizer Robert Schuller has had a great influence on Rick Warren's teachings and that Schuller's influence can be found throughout Rick Warren's book "The Purpose-Driven Life". Smith writes, "The more I read Robert Schuller, the more I was shocked at how so many of Rick Warren's thoughts, ideas, references, words, terms, phrases, and quotes in 'The Purpose-Driven Life' seemed to be inspired by Schuller's writings and teachings".