*The Life by Leontius along with several interpolations from other sources can be found in Dawes and Baynes, ''Three Byzantine Saints'' (Crestwood, NY: 1977). *A good recent summary can be found in the new Synaxarion written by Hieromonk Macarius of Simonopetra, Christopher Hookway (trans.) ''The Synaxarion: The Lives of the Saints of the Orthodox Church: Volume 2: November, December'' (Ormylia Greece 1999) under the entry for November 12. *John's relations with non-Chalcedonians are treated briefly in John Meyendorff ''Imperial Unity and Christian Divisions: The Church 450-680 A.D.'' (Crestwood NY 1989). *Online, entries can be found on Wikipedia at [[Wikipedia:St. John the Merciful|St. John the Merciful]] and on the Catholic Encyclopedia under [http://www.newadvent.org/cathen/08486a.htm St. John the Almsgiver].