Commemoration of Saint Gregory Palamas, Archbishop of Thessalonica (4th century); Synaxis [Meeting] of All Venerable Fathers of the Kyiv-Caves Abbey; Venerable Theophylactus the Confessor, bishop of Nicomedia (842-845); Apostle Hermas of the Seventy (1st cent.); Hieromartyr Theodoretus, presbyter, of Antioch (361-363); Ven. Dometius, monk (363).