October 11
Sunday of the 7th Ecumenical Council
On the Sunday that falls on or immediately after the eleventh of this month, we chant the Service to the 350 holy Fathers of the Seventh Ecumenical Council, which gathered in Nicaea in 787 under the holy Patriarch Tarasius and during the reign of the Empress Irene and her son, Constantine Porphyrogenitus, to refute the Iconoclast heresy, which had received imperial support beginning with the Edict issued in 726 by Emperor Leo the Isaurian. Many of the holy Fathers who condemned Iconoclasm at this holy Council later died as Confessors and Martyrs for the holy Icons during the second assult of Iconoclasm in the ninth century, especially during the reigns of Leo the Armenian and Theophilus.