Challenges and Opportunities in Ecumenism: A Catholic Perspective  Bishop Brian Farrell is Secretary of the Dicastery for Promoting Christian Unity (DPCU), Vatican City, and Vice President of the Holy See’s Commission for Religious Relations with Judaism.03/27/2023Bishop Brian Farrell is Secretary of the Dicastery for Promoting Christian Unity (DPCU), Vatican City, and Vice President of the Holy See’s Commission for Religious Relations with Judaism.Gloria AroneoFaith and ServiceDepartment of Catholic Studiesianboyd2023-06-20T16:44:00.201Z