Symeon the New Theologian
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.
Apolytikion of Simeon the New Theologian in the Third Tone
Since thou hadst received within thy pure soul God's enlightenment, O righteous Father, thou wast shown to the world as a blazing light which drave away its thick darkness and moved all men to seek the grace of the Spirit which they had lost. O all-holy Father Symeon, intercede with Him to grant great mercy unto us who honour thee.
Kontakion of Simeon the New Theologian in the Third Tone
Shining with the Three-Sun Light, thou wast a true theologian of the Holy Trinity, the Lord divinely-transcendent; from on high, thou wast made rich with wisdom of discourse and didst pour forth the divine streams of godly wisdom; whereof having drunk, we cry out: Rejoice, thrice-blessed Symeon, taught from above.