WATCH: Bringing biblical blue back to Jewish prayer shawls July 30, 2018A specific shade of blue, in Hebrew “techelet,” specified in the bible as the color to be used in the traditional prayer shawls, was worn by Jewish men in ancient times. Today, an Israeli company is reviving traditional methods of creating this biblical hue after discovering the source. It isn’t that simple! Jewish historyJewish Prayer ShawlsJewish tradition