▁tre ating ▁of ▁the ▁different ▁forms ▁of ▁contract s ▁according ▁to ▁rabb in ical ▁law . ▁ ▁Besides ▁this ▁hal akh ic ▁work , ▁Jud ah ▁wrote ▁a ▁detailed ▁comment ary ▁on ▁the ▁Se fer ▁Yet zi rah . ▁Like ▁most ▁comment aries ▁on ▁Se fer ▁Yet zi rah , ▁that ▁by ▁Jud ah ▁helps ▁little ▁to ▁an ▁understanding ▁of ▁the ▁text ; ▁on ▁the ▁contrary , ▁it ▁contains ▁Jud ah ' s ▁own ▁rather ▁diff use , ▁half - m yst ical , ▁half - ph il osoph ical ▁the ological ▁discuss ions . ▁The ▁author ▁bet ray s ▁an ▁aston ishing ▁familiar ity ▁with ▁the ▁Tal m ud ic - M id r ash ic ▁literature , ▁and ▁gives ▁extract s ▁from ▁works ▁of ▁the ▁Ge on im ▁which ▁are ▁otherwise ▁unknown . ▁ ▁Jud ah ▁was ▁acquaint ed ▁with ▁the ▁philosoph ical ▁writ ings ▁of ▁Sa ad ia ▁and ▁of ▁Samuel ▁ben ▁H oph ni , ▁but ▁not ▁with ▁those ▁of ▁Sol omon ▁ibn ▁Gab i rol ▁and ▁Ba ḥ ya . ▁He ▁shows ▁little ▁talent ▁for ▁dealing ▁with ▁the ological ▁or ▁philosoph ical ▁subjects . ▁He ▁arg ues ▁str enu ously ▁against ▁the ▁charge ▁made ▁by ▁the ▁Kar ait es ▁that ▁the ▁R abb is ▁fav ored ▁anth rop omorph isms . ▁The ▁Se fer ▁Yet zi rah ▁was ▁first ▁published ▁by ▁Hal ber st am ▁in ▁ 1 8 8 5 ▁( Ber lin ). ▁ ▁A ▁treat ise ▁on ▁the ▁prepar ation ▁of ▁Tor ah ▁scroll s