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Saint Cosmas was from the Holy City, Jerusalem, and was a contemporary and peer of Saint John of Damascus (Dec. 4), with whom also he was reared when, because of his orphanhood he was adopted by Sergius, Saint John’s father, and with whom he had the same instructor. About the year 743, he was elected Bishop of Maiuma, a coastal city of Palestine, aforetime under the jurisdiction of Gaza, with the name Port Gaza. During the reign of Saint Constantine the Great, it became a separate township and at that time was renamed Constantia, after Constantine, the son of the Emperor (see Sozomen, Eccl. Hist., V:3). Cosmas became an excellent hymnographer, from whence he is called “the Composer and Melodist,” Among his many compositions are the Canon of the Cross (Sept. 14) and the Canon for the Nativity of Christ, “Christ is born, give ye glory.”
Apolytikion in the Plagal of the Fourth Tone
You are a guide of Orthodoxy, a teacher of piety and modesty, a luminary of the world, the God inspired pride of monastics. O wise Cosmas , you have enlightened everyone by your teachings. You are the harp of the Spirit. Intercede to Christ our God for the salvation of our souls.
Kontakion in the Plagal of the Fourth Tone
Adorned with virtues, O blest Cosmas, and inspired of God, thou didst become a fair adornment of the Church of Christ, and with sacred songs, O Father, didst thou adorn her. Intercede thou with the Lord that He deliver us out of all the devices of the enemy, for we cry to thee: Rejoice, O thrice-blessed Father.