Theodore the Studite

Reading from the Synaxarion:

Saint Theodore the Studite was born in Constantinople in 759; his pious
parents were named Photinus and Theoctiste. He assumed the monastic habit
in his youth, at the monastery called Sakkoudion, and became abbot
there in 794. About the year 784 he was ordained deacon, and later
presbyter by the most holy Patriarch Tarasius. On joining the brotherhood
of the Monastery of Studium (which was named after its founder
Studius, a Roman consul), the Saint received the surname "Studite." He
proved to be a fervent zealot for the traditions of the Fathers and
contested even unto death for the sake of his reverence for the holy icons.
He endured three exiles because of his pious zeal. During the third
one, to which he was condemned by the Iconoclast autocrat, Leo the
Armenian, he endured courageously - being beaten and bound and led from one
dark dungeon to another - for seven whole years. Finally he was
recalled from exile by Michael the Stutterer. Receiving thus a small
respite from his labours of long endurance, he reposed in the Lord on
November 11, 826, a Sunday, while his disciples, who stood round about
him, chanted the 118th Psalm. Some say that after receiving the
immaculate Mysteries, he himself began chanting this psalm. And on reaching
the verse, ' I will never forget Thy statutes, for in them hast Thou
quickened me" (Ps. 118:93), he gave up his spirit, having lived for
sixty-seven years. In addition to his other sacred writings, he composed,
with the collaboration of his brother Joseph, almost the whole of the
compunctionate book of the Triodion (see also July 14).

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
Theodore, 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 Second Tone
Ascetic in truth and equal to the Angel's life, thy life was made bright
with contests and martyric trials; and the holy Angels' companion was
thou, Theodore, blest of God; now together with them, O Saint, thou
ceaselessly prayest Christ in our behalf.