Sefer Zerubbabel

Sefer Zerubavel also called the Book of Zerubbabel or the Apocalypse of Zerubbabel is a medieval Hebrewapocalypse written at the beginning of the 7th century in the style of biblical visions (e.g. Daniel, Ezekiel) placed into the mouth of Zerubbabel, the last descendant of the Davidic line to take a prominent part in Israel's history, who laid the foundation of the Second Temple in the 6th century BCE. The enigmatic postexilic biblical leader receives a revelatory vision outlining personalities and events associated with the restoration of Israel, the End of Days, and the establishment of the Third Temple.

The groundwork for the book was probably written in Palestine between 629 and 636, during fierce struggles between Persia and the Byzantine Empire for control of the Holy Land (qq.v. Byzantine-Arab Wars, Muslim conquest of Syria). These wars touched Byzantine Palestine and stirred Messianic hopes among Jews, including the author for whom the wars appear to be eschatological events leading to the appearance of the Messiah.Armilus is thought to be a cryptogram for Heraclius, and that the events described in the Sefer Zerubbabel coincide with the Jewish revolt against Heraclius. However, firm evidence of the work's existence prior to the tenth century is elusive. The Zohar is cognizant of the legend of Hefzibah whom the apocalypse first names as the mother of the Davidic Messiah. Rabbis Saadia Gaon (892–942) and Hai ben Sherira Gaon (939–1038) probably knew the book, but never mention it by name.

...
Wikipedia