In 1817 he founded and edited the eight volumes of Jedidja, a periodical of Jewish studies in German (1817–31), which appeared in a new series in 1839–41 and later as Allgemeines Archiv des Judenthums (1842–43). His Hebrew commentary to the Torah, Be'ur la-Talmid, was published in a new edition of the Pentateuch along with Mendelssohn's translation (1831–33). His publications include a collection of articles and letters written by and to Mendelssohn, books on Judaism and Jewish education, a German translation of Isaiah, and essays on the legal and cultural status of the Jews of Prussia.