On the Saints is the third volume in the series, Sermons by Saint Gregory Palamas, consisting of seven sermons devoted to the saints of the Old and New Testaments, and including St. Gregory's wonderful homily on his fellow patron saint of Thessalonica, the Great Martyr Demetrius the Myrrhstreamer (3rd century). Saint Gregory gave to the Church what is surely the most complete synthesis and perfect formulation of the Apostolic tradition of all generations. His theology, in a charismatic and existential way, recapitulates, in its entirety, the spiritual experience of the saints of the Old and New Testaments . . . The sermons of Saint Gregory Palamas, in spirited and uncomplicated idiom, render his entire life's work accessible to the people of God. In fact, they form the most complete introduction not only to his theology, but to the theology of all the great Fathers of the Church. --Archimandrite Zacharias, Monastery of St. John the Baptist, England 14 century saint, ascetic and Metropolitan bishop of Thessalonica (1347-1359). Greatest exponent of Hesychasm.