 He returned to the Church of England in 1997, receiving permission to officiate in the Diocese of Chichester and becoming assistant curate of Aldwick (1998-2000).His friendship with the Most Reverend James Ayong, Archbishop of Papua New Guinea, led to Jupp's appointment as Principal of Newton Theological College, Popondetta, Oro Province, Papua New Guinea in 2000.Throughout his ministry he has been a member of the Ecumenical Society of the Blessed Virgin Mary (and a member of its council), the Society of the Holy Cross, the Church Union and the Confraternity of the Blessed Sacrament.