Presiding bishop calls for 'A Season of Prayer for Sudan' September 16, 2010 by Fulcrum Presiding Bishop Katharine Jefferts Schori is calling on Episcopalians to observe "A Season of Prayer for Sudan" as the war-torn African nation prepares for a critical referendum to determine its future. Matthew Davies. Episcopal Lifeonline. 15 September 2010. FulcrumShareTweetShare