Born in Greenwich as Cyril Jarrett, he was the fifth of six sons to parents Colonel H.S. Jarrett, Companion of the Order of the Indian Empire, and Agnes Jarrett. Beginning in 1891, Jarrett studied at Stonyhurst, and in August 1898 he joined the Order of Preachers, also known as the Dominican Order, at St Dominic's Priory in London. Jarrett continued to study at the novitiate in Woodchester and became a novice on 24 September 1898 under the new name of Friar Bede. His religious name was for Bede, known as "the Venerable Bede", an early British Catholic saint sometimes called the Father of English History. On 30 August 1900, Jarrett moved to continue his studies of philosophy, theology and history at Hawkesyard Priory and received minor orders and the subdiaconate, and diaconate in 1902. In 1904 Jarrett became the first Dominican friar since the Reformation to study at the University of Oxford, matriculating as a student with the Benedictines at St. Benet’s Hall. He studied history and completed his degree in 1907. On 18 December 1904, after his first term at Oxford, Jarrett was ordained in Woodchester. To complete his formal education, in 1908 he received his lectorate in theology at Louvain.
Career
St Dominic's Priory became Jarrett's first and long-time station. Appointed prior at the "unusually early" age of 33 and beginning his position on 17 June 1914, Jarrett became the elected provincial two years after on 5 September 1916 and held the office until his death in 1934 after a record four successful elections. His accomplishments at St Dominic's included expanding the Laxton Dominican School for Boys, beginning a series of Thomistic lectures sponsored by London University and launching missions in the Middle East and South Africa. He felt it was important that Dominicans preach abroad rather than concentrate efforts domestically, a departure from the previous provincial who had not pursued the South African mission for that reason.
Blackfriars Priory
Jarrett also founded the Blackfriars Dominican priory in Oxford. Construction began on 15 August 1921; it took Jarrett eight years to raise the funds to build the new priory, the success of which peers attributed to his frequent trips to and fundraising in the United States. The event earned a letter of congratulations and encouragement from Pope Benedict XV. The priory opened in 1929 but was incomplete at the time of Jarrett's death.
Writings and publications
Jarrett authored numerous books, prayers and articles, including five entries in the Catholic Encyclopedia. He also purchased Blackfriars, a Dominican magazine renamed New Blackfriars in the 1960s, for £40 in 1919 and persuaded publisher Basil Blackwell to publish it, which prevented it from being discontinued.
Jarrett knew author Graham Greene, also an Oxford graduate, and instructed his wife Vivien prior to her reception into the Catholic Church in 1922. He became godfather to Lucy Caroline Greene, their daughter, in 1933. Greene biographers W.J. West and Michael G. Brennan speculate that Greene's relationship with Jarrett and Jarrett's works, including Mediaeval Socialism and Social Theories in the Middle Ages, influenced Greene's writings.