The Oomoto Shin'yu (大本神諭) is a sacred scripture of Oomoto, a Japanese new religion founded in 1892 by Nao Deguchi. Beginning in 1892, it was originally dictated by Nao Deguchi and written on paper in hiragana. The manuscript, originally known as the Ofudesaki or Fudesaki, was later reinterpreted and edited by Onisaburo Deguchi to become the Oomoto Shin'yu. Onisaburo Deguchi glossed the original kana text with kanji and prepared it for publication. During the course of editing the manuscript, Onisaburo Deguchi altered some of the meanings of the original text, since he and Nao Deguchi had differing beliefs. As a result, the Nao Deguchi's original unedited, unpublished manuscript is referred to as the Ofudesaki, while Onisaburo Deguchi's edited version is known Oomoto Shin'yu.