Ben-Ze'ev released new editions and commentaries to the Saadia Gaon's Sefer ha-emunot ve-ha-de'ot (Berlin, 1789) and Yedidya ha-Penini's Beḥinat ha-'Olam (1789).[20][21] His last major work was Mavo el mikraʼe kodesh (Vienna, 1810), an anthology of historical-critical introductions to each of the books of the Prophets and Hagiographa.[17] The Mavo adopts some of the critical theories of Johann Gottfried Eichhorn.[22][23]