About Eleazar ben Yehudah of Worms (Rokeach)
Eleazar's mystical works are:
(1) "Yir'at El," still extant in manuscript in the Vatican Library, containing mystical commentaries on Psalm lxvii., on the Menorah, and on Sefirat ha-'Omer.
(2) "Sefer ha-Kabod," mystical explanations of various Biblical passages (Neubauer, "Cat. Bodl. Hebr. MSS." No. 1566, 1).
(3) "Yayin ha-Reḳaḥ," mystical commentaries on the five Megillot. Those on Ruth and the Song of Songs were published at Lublin, 1608.
(4) A commentary on Psalm cxlv. (MS. De Rossi No. 1138).
(5) A commentary on the prayers mentioned by Joseph Delmedigo in his "Maẓref la-Ḥokmah" (p. 14b).
(6) "Ta'ame we-Sodot ha-Tefillah" (Neubauer, ib. No.1575.)
(7) "Perush 'al Sefer Yeẓirah," a commentary on the "Yeẓirah," being extracts from Shabbethai Donnolo's commentary. Fragments of this work were first published at Mantua in 1562, later in several other places; a complete edition was printed at Przemysl, 1889.
(8) "Midrash we-Perush 'al ha-Torah," cabalistic commentary on the Pentateuch, mentioned by Azulai.
(9) "Sha'are Binah," in which, interpreting Biblical verses by the system of gemaṭriyyot, he shows the origin of many haggadot of the Talmud. This work is frequently quoted by Solomon al-Ḳabiẓ, in his "Manot ha-Lewi."
(10) "Shi'ur Ḳomah," a commentary on the "Shi'ur Komah," the "Pirḳe de-Rabbi Yishma'el," and the "Merkabah" (MS. Michael).
(11) "Sefer ha-Ḥokmah," cabalistic treatise on the various names of God and of angels, and on the seventy-three "Gates of the Torah" ( ).
(12) "Sefer ha-Shem," mystical dissertations on the names of twenty-two letters, with a table of permutations (Neubauer, ib. No. 1569, 4).
(13) "'Eser Shemot," commentary on the ten names of God (MS. Michael, No. 175).
(14) A commentary on the piyyuṭ "Ha-Oḥez."
(15) Six small cabalistic treatises entitled "Sod ha-Ziwwug," "Sefer ha-Ne'elam," "Sefer Mal'akim," "Sefer Tagim," "Sefer Pesaḳ," and "Sefer ha-Ḳolot," all of which are still extant in manuscript (Neubauer, ib. No. 1566).
(16) "Liḳḳuṭim," cabalistic fragments, mentioned by Recanate.
(17) "Sode Raza," a treatise on the mysteries of Cabala, particularly on the "Merkabah." Part of this work was published at Amsterdam in 1701, under the title "Sefer Razi'el ha-Gadol." In the introduction the editor says that he decided to publish this book after having seen that the greater part of it had been produced in French under the title "Images des Lettres de l'Alphabet."
In addition to these works, Eleazar wrote tosafot to many Talmudical treatises, referred to by Bezalel Ashkenazi in his "Shiṭṭah Meḳubbeẓet"; a commentary on "Sheḳalim" in the Palestinian recension, cited by Asheri in his commentary to that treatise in the Babylonian Talmud; thirty-six chapters on the examination of slaughtered animals (MS. Michael No. 307). Zunz enumerates fifty-five liturgical poems and dirges composed by Eleazar and occurring in the Ashkenazic maḥzorim, ḳinot, and seliḥot.
See documents (under Media) for complete Biography
from "The World That Was Ashkenaz" by Rabbi A. Leib Scheinbaum.
Referred to as R' Elazar Rokeach alluding to his magnum opus, the "Sefer HaRokeach, R' Elazar, served as integral link in the chain of transmission of the Kabbalah and chassidut that originated in Ashkenaz.
A scion of the distinguished Kalonimus family, he studied under his father, R' Yehudah of Mainz, R' Yehudah HaChasid, and R' Yehudah ben Kalonimus of Speyer (the Rivak) author of "Yichusei Tannaim v'Amoraim".
R' Elazar Rokeach was the author of some fifty-five volumes on Halachah and Kabbalah. His sefer "Maaseh Rokeach" was not published until early in the twentieth century.
.... see under documents for two page bio.