To escape
Alexander Jannaeus's persecution of the
Pharisees, Judah ben Tabbai, who was already a prominent Pharisee scholar, fled to
Alexandria. After Jannaeus's death in 76 BCE,
Salome Alexandra became queen of
Judea. The Pharisees now became not only a tolerated section of the community, but actually the ruling class. Salome Alexandra installed as
high priest her eldest son,
Hyrcanus II, a man who was wholly supportive of the Pharisees and the
Sanhedrin was reorganized according to their wishes. As part of the reorganization, Salome appointed her brother
Simeon ben Shetach as
prince (nasi) of the Sanhedrin. Simeon ben Shetach wrote a flattering letter to Judah ben Tabbai, who was still in Alexandria, inviting him to return to Jerusalem to become the
Av beit din of the Sanhedrin. {{quote|text=With the help of Simon [Judah] undertook the reorganization of the [Sanhedrin], the improvement of the administration of the law, the re-establishment of neglected religious observances, the furthering of education, and generally the fashioning of such regulations as the times required. Like
Ezra and
Nehemiah of old, these two zealous men insisted upon a return to the strictest form of Judaism; and, if they were often obliged to employ severe and violent measures, these are not to be accounted to any personal malice, but to the sterness of the age itself. They were indeed scrupulously strict in their own conduct, and in directing those closely connected with them. From the days of Judah ben Tabbai and Simon ben Shetach, the rule of Judean Law, according to the view of the Pharisees, may be said to have begun, and it grew and developed under each succeeding generation. These two celebrated men have therefore been called "Restorers of the
Law", who "brought back the Crown (the
Law) its ancient splendor." == Opposition to the Sadducees ==