St. Theosterictus the Confessor (826)

The teacher of orthodoxy, preceptor of piety and chastity, luminary of the universe, God-inspired instruction of the hierarchs, O Theosterictus, greatly wise, thou hast illumined all by thy teaching, O spiritual flute; entreat Christ the God that our souls may be saved.

Having found delight in abstinence, thou hast stilled the very desires of thy body, appearing to be reared on the faith, and as the paradisical tree of life hast thou blossomed, O Theosterictus, sacred father.