Having himself suffered from the lack of system that characterized the yeshiva, Jost took the greatest interest in pedagogics, and his earliest literary work was devoted to the writing of textbooks, among which may be mentioned a grammar of the English language ("Lehrbuch der Englischen Sprache"), which went through three editions (Berlin, 1826, 1832, and 1843), and a dictionary to Shakespeare's plays (Berlin, 1830). He wrote also "Theoretisch-Praktisches Handbuch zum Unterricht im Deutschen Stil" (Berlin, 1835; the title of the second edition was "Lehrbuch des Hochdeutschen Ausdruckes in Wort und Schrift", published in 1852). To the same class belongs his Biblical history, "Neue Jugendbibel, Enthaltend die Religiösen und Geschichtlichen Urkunden der Hebräer, mit Sorgfältiger Auswahl für die Jugend Uebersetzt und Erläutert: Erster Theil, die Fünf Bücher Mosis" (Berlin, 1823).