July 31: St. Justin de Jacobis The feast day of St. Justin de Jacobis is July 31. Please make use of any of these three SlideShare presentations on his life: **NEW** St. Justin de Jacobis, C.M.: Missionary to Ethiopia St. Justin de Jacobis: The Art of Dialogue Door of Faith: St. Justin de Jacobis Share this:FacebookTwitterPinterestEmailPrintMoreLinkedInWhatsApp