Saint John XXIII UT Parish Catholic Church at UTK in Knoxville, TN - home to all VOL Catholic fans everywhere! Go VOLs! The Saint John XXIII mobile app has everything you need at the touch of a finger to stay connected including a church directory, social media, website, calendar of events, and more! Please make sure to give our app high ratings in the app store and take a few moments to share the app with others or on your own social media pages. Be well.