This divine Father, who was from Asia Minor, was from childhood reared in the royal court of Constantinople, where he was instructed in both religious and secular wisdom. Later, while still a youth, he left the imperial court and struggled in asceticism on Mount Athos, and in the Skete at Beroea. He spent some time in Thessalonica being treated for an illness that came from his harsh manner of life. He was present in Constantinople at the Council that was convened in 1341 against Barlaam of Calabria, and at the Council of 1347 against Acindynus, who was of like mind with Barlaam; Barlaam and Acindynus claimed that the grace of God is created. At both these Councils, the Saint contended courageously for the true dogmas of the Church of Christ, teaching in particular that divine grace is not created, but is the uncreated energies of God which are poured forth throughout creation: otherwise it would be impossible, if grace were created, for man to have genuine communion with the uncreated God. In 1347 he was appointed Metropolitan of Thessalonica. He tended his flock in an apostolic manner for some twelve years, and wrote many books and treatises on the most exalted doctrines of our Faith; and having lived for a total of sixty-three years, he reposed in the Lord in 1359.

His holy relics are kept in the Cathedral of Thessalonica. A full service was composed for his feast day by the Patriarch Philotheus in 1368, when it was established that his feast be celebrated on this day. Since works without right faith avail nothing, we set Orthodoxy of faith as the foundation of all that we accomplish during the Fast, by celebrating the Triumph of Orthodoxy the Sunday before, and the great defender of the teachings of the holy Fathers today.

Saint Theophanes, who was born in 760, was the son of illustrious parents. Assenting to their demand, he married and became a member of the Emperor's ceremonial bodyguard. Later, with the consent of his wife, he forsook the world. Indeed, both of them embraced the monastic life, struggling in the monastic houses they themselves had established. He died on March 12, 815, on the island of Samothrace, whereto, because of his confession of the Orthodox Faith, he had been exiled by Leo the Armenian, the Iconoclast Emperor.

Saint Symeon became a monk of the Studite Monastery as a young man, under the guidance of the elder Symeon the Pious. Afterwards he struggled at the Monastery of Saint Mamas in Constantinople, of which he became abbot. After enduring many trials and afflictions in his life of piety, he reposed in 1022. Marvelling at the heights of prayer and holiness to which he attained, and the loftiness of the teachings of his life and writings, the church calls him "the New Theologian." Only to two others, John the Evangelist and Gregory, Patriarch of Constantinople, has the church given the name "Theologian." Saint Symeon reposed on March 12, but since this always falls in the Great Fast, his feast is kept today.