Bernays was born in Weisenau (now part of
Mainz). He was the son of Jacob Gera, a boarding housekeeper at Mainz, and an elder brother of
Adolphus Bernays. After having finished his studies at the
University of Würzburg, in which city he had been also a disciple of the Talmudist Rabbi
Abraham Bing, he went to
Munich as private tutor in the house of Herr von Hirsch and afterward lived at Mainz as a private scholar. In 1821, he was elected chief rabbi of the German-Jewish community in Hamburg, to fill a position where a man of strictly Orthodox views but of modern education was wanted as head of the congregation. After personal negotiations with
Lazarus Riesser, who went to see him in Mainz, Bernays accepted the office on characteristic terms; namely, that all the religious and educational institutions of the community were to be placed under his personal direction; he wanted to be responsible to the government only. Besides this he required a fixed salary, independent of incidental revenues. The community assigned to him the title "clerical functionary" or "
Ḥakham," instead of the usual traditional titles, "moreh tzedek" or "rabbi". In 1822, he began the reform of the Talmud Torah school, where the poorer children of the community had until then been taught Hebrew and arithmetic. He added lessons in German, natural science, geography, and history as important parts of the curriculum, and by 1827 what had formerly been merely a religious class had been changed to a good elementary public school. The council of the community wanted to take a greater part in the supervision of the course of instruction, and in consequence of differences with the Chakam resulting from these claims, they withdrew the subvention of the school in 1830; but through the intervention of the
senate of Hamburg this was again granted in 1832, though Bernays was denied the presidential seat he had till then occupied in the council of the school and was made instead "ephorus" of the school. In 1849, he died suddenly of
apoplexy and was buried in the Grindel cemetery. ==Influence==