Miṭpaḥat Sefarim

Miṭpaḥat Sefarim is the book Research Which deals with the composition of the Book of Zohar and its contents writing by Rabbi Jacob Emden (Ya'avetz. In Hebrew: יעב"ץ). Purpose Writing the book is To challenge the attribution of the book to Tanna from the 2nd century AD by Rabbi Shimon Bar Yochai, and to attribute it to an author later. The appeal of the book's status was intended to combat the Sabbath movement, which relied on passages in the Book of Zohar to confirm the proclamation of the Kabbalist Shabtai Zvi about himself as the Messiah in the middle of the 17th century.