COMMENTARY ON THE HEBREW TEXT OF

This thesis is a critical edition of the Judeo-Arabic commentary on the Hebrew text of the Book of Job by one of the greatest Karaites of his age (second half of the tenth century A. D.), Yefet Ben 'Ali the Karaite. An examination of the photocopies and microfilms of the original Manuscripts of Yefet Ben 'Ali written in the XIth, XIV-XVIIth, XVth and XVIth centuries resulted in a delimitation of the number of chapters in this edition i. e. chapters I-X. None of the four Manuscripts is complete and I have tried to complete the presentation of the first ten chapters of Yefet's commentary on the Book of Job by filling in the gaps of the master copy which I used (Ms. A., Or. 2509 B. M.) from the other Manuscripts. I used it as a main text because it is almost a complete copy compared with the others, as far as the first ten chapters are concerned. The four Manuscripts which I use