Fr. Benneth was ordained in 2006 and has served as Parish Priest of St. Joseph's Faifley (2012-2017), Parishes of Our Lady of Perpetual Succour Broomhill and Corpus Christi Scotstounhill (2017-2022). He was appointed parish priest of St. Helen's Langside and the Chaplain of Holyrood Secondary School in 2022. Prior to his appointments in the Archdiocese of Glasgow, Fr. Benneth has served in the parishes of St. John's Isiopko (2006-2008), Christ the King Parish Awo-idemili (2008-2010) as well as the administrator of Epiphany Nursery/Primary and Secondary Schools (2008-2010), all in the Diocese of Orlu, Imo State, Nigeria. He did his Post-graduate studies in Rome between 2010-2012.