Moishe Rosen, born Martin Meyer Rosen, was an American Baptist minister and evangelist who pioneered modern Jewish evangelism through creative street outreach, media, counter-culture marketing, provocative street theater, and a distinctive emphasis on retaining Jewish identity while believing in Jesus as Messiah. Raised in Denver after his birth in Kansas City to a Jewish family with mixed Orthodox and Reform influences, Rosen and his wife Ceil converted to Christianity in 1953. Following theological training, he was ordained in 1957 and spent 17 years as a missionary with the American Board of Missions to the Jews (ABMJ), serving in Los Angeles, heading operations in New York City and San Francisco, before his dismissal due to aggressive tactics and refusal to assimilate into traditional church structures. He then launched independent efforts in San Francisco with a group of young recruits known as 'The Liberated Wailing Wall,' formalizing Jews for Jesus in 1973, where he served as founder, architect of its unique outreach methodology, executive director until 1996, and board advisor thereafter. Throughout his career, Rosen authored numerous books, including 'Jews for Jesus' (1974) and 'The Sayings of Chairman Moishe' (1974), the latter parodying Maoist rhetoric to spread his message. He was a controversial figure, facing intense opposition from anti-missionary groups and mainstream Jewish denominations who viewed his work as deceptive and culturally predatory, yet remained a prominent voice in evangelical circles until his death from prostate cancer in 2010.