the Open Siddur Project ✍︎ פְּרוֹיֶקְט הַסִּדּוּר הַפָּתוּחַ
a community-grown, libre Open Access archive of Jewish prayer and liturgical resources
This project is sustained through reciprocity for those sharing prayers and crafting their own prayerbooks.
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📖 שִׁמּוּשׁ תְּהִלִּים | Shimush Tehillim (the Theurgical Use of Psalms), attributed to Hai ben Sherira Gaon![]() The Shimmush Tehillim is a medieval work providing prescriptive theurgical associations for Psalms and verses from Psalms. It has been historically attributed to Rav Hai Gaon (939-1038 CE) but any definitive statement of authorship is lacking. The suggestion that portions of the Shimush Tehillim were authored during the late Geonic period in Iraq isn’t implausible. We also know that Hai Gaon was knowledgeable of Hekhalot writings that should at least be considered part of the same thought world as the Shimmush Tehillim. Writings found in the Shimush Tehillim have been found in manuscripts dating from the 12th century. This digital transcription of Shimush Tehillim derives from Elias Klein Békéscsaba’s 1936 compilation. This edition should not be considered a critical text, as earlier editions certainly exist. Not all of the Psalms are identified as having a particular theurgical use. . . . הספר ששמשו בו הכשדים | Theurgy of the Kasdim, an astral-magic treatise on the seven angels of the week![]() A work of Jewish astrology and magic containing recipes specific to the angelic rulers of each day of the week. . . . ![]() A guide to the activities one might engage upon in every hour of the week corresponding with their ruling planet, numinous and cthonic power. . . . | ||
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