St. Chromatius (345?-407) was a friend and supporter of both Jerome and Rufinus of Aquileia, as well as of Sts. Ambrose and John Chrysostom. His Homilies on Matthew were rediscovered in modern times and translated into French in the SC series, and more recently into Italian. Pope Benedict XVI devoted one of his catecheses to Chromatius, based on the Italian version of the homilies. This new English translation of the homilies and tractates will include a substantial introduction that covers biographical matters, involvement with the Origenist controversy between Rufinus and Jerome, and the controversy over John Chrysostom's deposition in which Chromatius supported John.