Kuhn contended that the Bible derived its origins from other Pagan religions and that much of Christian history was pre-extant as Egyptian mythology. He also proposed that the Bible was symbolic and did not depict real events, and argued that the leaders of the church started to misinterpret the bible at the end of the third century. These controversial ideas outside of mainstream history and theology are rejected by most pre-eminent scholars, but many including Tom Harpur and John G. Jackson were influenced by the works of Kuhn.

Harpur even dedicated his best-selling 2004 book, "The Pagan Christ" to Kuhn, calling him "a man of immense learning and even greater courage" and "one of the single greatest geniuses of the twentieth century" [who] "towers above all others of recent memory in intellect and his understanding of the world's religions."