Sefer Yeṣirah’s Dating, Geographic Provenance and the Open Question of Its Composer’s Religious Affiliation and Identity

In 2018, Weiss has ended centuries of speculation about the enigmatic Hebrew Sefer Yeṣirah’s dating and geographical provenance, demonstrating with a high level of confidence (specifically on the basis of Sefer Yeṣirah’s Syriac grammarian loanwords) a seventh-century C.E. Syrian origin. Weiss and others have also shown that Sefer Yeṣirah’s closest parallels are in Syriac Christian grammarian and theological sources. Given that abundant evidence points to a Rabbinic form of Judaism present in ancient Syria, the theory of a Jewish composer is odd because of the text’s non-Rabbinic character. Similarly, the theory of a Syriac Christian or “Jewish-Christian” author is odd in view of the text’s composition in Hebrew instead of Syriac. It remains for future research to solve this final enigma of the religious identity of Sefer Yeṣirah’s composer.