Jacob Frank and His Heresy: Complete

Jacob Frank was a controversial Jewish mystic from the 18th century who led a movement called Frankism, considered a heresy within Judaism, where he preached a radical rejection of traditional Jewish law and practice, often involving antinomian behavior, sexual liberation, and ultimately a mass conversion to Christianity, all while claiming to be a messiah and reinterpreting mystical concepts like Kabbalah in a highly unorthodox way; his followers believed that by transgressing religious boundaries, they could achieve spiritual enlightenment.