Divine Scripture (神代文書 Shindai bunsho, Records of the age of Gods) is a new game+ Event Item in Riviera: The Promised Land that details the location of the legendary Fanelia.
The Scripture is obtained by defeating Hades in Chap. 8 and starting a new game. As soon as Ein arrives in Elendia, be sure to examine the book shelf in the Magic Guild to get it.