Cahen's main work was the translation of the
Jewish Bible into French, with the
Hebrew on opposite pages, and critical notes and dissertations by himself and others. The entire edition, consisting of eighteen volumes, appeared at Paris in 1851. Despite adverse criticism, denying Cahen critical perception in the choice of his material, the undertaking exerted a great influence upon a whole generation of French Jewry. In addition to this monumental work of his, Cahen was the author of the following: • ''Cours de Lecture Hébraïque, Suivi de Plusieurs Prières, avec Traduction Interlinéaire, et d'un Petit Vocabulaire Hébreu-Français'', Metz, 1824 • ''Précis d'instruction religieuse'', 1829 • A new French translation of the Haggadah of Passover, Paris, 1831–32 •
Almanach Hébreu, 1831. Cahen was appointed a chevalier of the
Legion of Honor in 1849.