research. In 1958, he published a work in two volumes, The Scribal Character of the Dead Sea Scrolls. In 1958, Martin was assigned to serve as a private secretary to Cardinal Augustin Bea, working with him in the Vatican until 1964. This brought Martin into contact with Pope John XXIII. Martin's years in Rome coincided with the beginning of the Second Vatican Council (1962–65), which was to transform the Catholic Church in a way that the initially liberal Martin began to find distressing. He became friends with Monsignor George Gilmary Higgins and Father John Courtney Murray. In Rome, Martin became a professor at the Pontifical Biblical Institute, where he taught Aramaic, Hebrew, palaeography, and Sacred Scripture. He also taught theology, part-time, at Loyola University Chicago's John Felice Rome Center. Martin worked as a translator for the Eastern Orthodox Churches and Ancient Oriental Churches Division of the Secretariat for Promoting Christian Unity under Bea. Martin became acquainted with Jewish leaders, such as Rabbi Abraham Joshua Heschel, in 1961 and 1962. Martin accompanied Pope Paul VI on a trip to Jordan in January 1964. He resigned his position at the Pontifical Institute in June 1964. In 1964, Martin requested a release from his vows and from the Jesuit Order. He received a provisional release in May 1965 and a dispensation from his vows of poverty and obedience on 30 June 1965 (cf. qualified exclaustration). Even if dispensed from his religious vow of chastity, Martin remained under the obligation of chastity if still an ordained secular priest. Martin maintained that he remained a priest, saying that he had received a dispensation from Paul VI to that effect. Martin moved to New York City in 1966, working as a dishwasher, a waiter, and taxi driver, while continuing to write. He co-founded an antiques firm and was active in communications and media for the rest of his life. Communications and media In 1967, Martin received his first Guggenheim Fellowship. In 1970, he published the book The Encounter: Religion in Crisis, winning the Choice Book Award of the American Library Association. He then published Three Popes and the Cardinal: The Church of Pius, John and Paul in its Encounter with Human History (1972) and Jesus Now (1973). In 1970, Martin became a naturalized U.S. citizen. In 1969, Martin received a second Guggenheim Fellowship, allowing him to write his first of four bestsellers, Hostage to the Devil: