Talmud
The Talmud (; ) is the central text of Rabbinic Judaism and the primary source of Jewish religious law (''halakha'') and Jewish theology. Until the advent of Haskalah#Effects, modernity, in nearly all Jewish communities, the Talmud was the cen ...
ist. He flourished in the first half of the 11th century. He was a pupil of
Gershom ben Judah
Gershom ben Judah, (c. 960–1040) best known as Rabbeinu Gershom (, "Our teacher Gershom") and also commonly known to scholars of Rabbinic Judaism by the title ''Rabbeinu Gershom Me'Or Hagolah'' ("Our teacher Gershom the light of the exile"), was ...
in
Mainz
Mainz (; #Names and etymology, see below) is the capital and largest city of the German state of Rhineland-Palatinate, and with around 223,000 inhabitants, it is List of cities in Germany by population, Germany's 35th-largest city. It lies in ...
, and is especially known as the teacher of
Rashi
Shlomo Yitzchaki (; ; ; 13 July 1105) was a French rabbi who authored comprehensive commentaries on the Talmud and Hebrew Bible. He is commonly known by the List of rabbis known by acronyms, Rabbinic acronym Rashi ().
Born in Troyes, Rashi stud ...
, who characterizes him as ''Mori HaZaken'' (my teacher the elder).
Yaakov was one of the leading Talmudic authorities of his time. In some cases Rashi disagrees with the opinions of his teacher Yaakov. It appears that Yaakov had already written commentaries on portions of the
Talmud
The Talmud (; ) is the central text of Rabbinic Judaism and the primary source of Jewish religious law (''halakha'') and Jewish theology. Until the advent of Haskalah#Effects, modernity, in nearly all Jewish communities, the Talmud was the cen ...
before Rashi. Much in Rashi's commentary on the Talmud is derived from oral communications of Yaakov. When Rashi says simply "my teacher" without naming any one he is always referring to his teacher Yaakov. It appears, based on a remark of Rashi, that Yaakov was engaged in interpreting the
Hebrew
Hebrew (; ''ʿÎbrit'') is a Northwest Semitic languages, Northwest Semitic language within the Afroasiatic languages, Afroasiatic language family. A regional dialect of the Canaanite languages, it was natively spoken by the Israelites and ...