Orange Catholic Bible

The Orange Catholic Bible (abbreviated to O. C. Bible or OCB) is a fictional book from the Dune universe created by Frank Herbert. Created in the wake of the crusade against thinking machines known as the Butlerian Jihad, the Orange Catholic Bible is the key religious text in the Dune universe and is described thus in the glossary of the 1965 novel Dune:

ORANGE CATHOLIC BIBLE: the "Accumulated Book," the religious text produced by the Commission of Ecumenical Translators. It contains elements of most ancient religions, including the Maometh Saari, Mahayana Christianity, Zensunni Catholicism and Buddislamic traditions. Its supreme commandment is considered to be: "Thou shalt not disfigure the soul."