One of the Biurists; a tutor in the house of Mendelssohn; afterward teacher at Lemberg. His commentary on the Book of Numbers appeared in the first edition of Mendelssohn's Pentateuch ("Netibot ha-Shalom," Berlin, 1783) and has been included in all subsequent editions. He published the third edition of Maimonides' "Millot ha-Higgayon," with Moses Mendelssohn's Hebrew commentary (Berlin, 1784).
- Fürst, Bibl. Jud. ii. 28;
- Steinschneider, Cat. Bodl. col. 721;
- Zeitlin, Bibl. Post-Mendels. pp. 153-154;
- Moses Mendelssohn, Gesammelte Schriften, v. 660.