Notoriously, Knight's first book, "The Worship of Priapus", sought to recover the importance of ancient phallic cults. Knight's apparent preference for ancient sacred eroticism over Judeo-Christian puritanism led to many attacks on him as an infidel and as a scholarly apologist for libertinism. This ensured the persistent distrust of the religious establishment. The central claim of "The Worship of Priapus" was that an international religious impulse to worship 'the generative principle' was articulated through genital imagery, and that this imagery has persisted into the modern age. In some ways the book was the first of many later attempts to argue that Pagan ideas had persisted within Christian culture, a view that would eventually crystallise into the neo-Pagan movement over a century later.