The Most Reverend John O. Barres, STD, JCL is the fifth Bishop of the Diocese of Rockville Centre (Long Island, NY). Previously, he served as the Bishop of the Diocese of Allentown (PA) from 2009 to 2016. He is a graduate of Phillips Academy (Andover), Princeton University and the New York University Graduate School of Business, and holds advanced theological degrees from the Catholic University of America and the Pontifical University of the Holy Cross in Rome. Bishop Barres serves on the Board of Trustees of the Catholic University of America. His Episcopal motto “Holiness and Mission” is taken from Pope St. John Paul II’s encyclical Redemptoris Missio which emphasizes the universal call to holiness and mission in the Catholic Church. It also expresses Bishop Barres’ commitment to Pope Francis’ emphasis on global Catholic missiology and evangelization and the call for a “missionary transformation” of Catholic parishes and every dimension of Catholic life and witness to the world.

Coat of Arms
Official Portrait

 Year of Ignatius Pastoral Letters and Reflections

  • Ad Maiorem Dei Gloriam — For the Greater Glory of God – English | Spanish
  • Father Walter Ciszek, S.J. and The Divine Will – English
  • Learning to Imitate Christ: The Conversion of St. Ignatius of Loyola – English | Spanish
  • Long Island’s Historic Catholic Past Inisfada and the St. Ignatius Retreat House – English
  • St. Ignatius of Loyola Surrender of the Soul to Christ – English
  • The Ignatian Charism of 
Father John Courtney Murray, S.J. – English




 Holiness and Mission


 Pastoral Letters

 Easter Letters

 Christmas Letters

 Lent Letters