Irmos: Having traversed the depths of the Red Sea with dryshod feet, Israel of old vanquished the might of Amalek in the wilderness by Moses’ arms stretched out in the form of the Cross.
God Who of His own will ascended the Cross, became for thee the path of suffering, and, casting down the tyrant, He made him like unto a bird for the martyrs to make sport of.
Theotokion: Wickedly did the serpent deceive me, making me captive, instilling in me the desire to become a god; but called by thee, O all-pure one, I have truly been immutably deified.
On earth, O most honored Theodosia, thou didst right mightily smite the prince of falsehood, suffering mightily, O most lauded martyr, and thou didst receive a crown of glory as one victorious.
He who of old was overweening in his pride hath now been cast down, struck a blow by thy patience, O martyr; for, having received the powers of the Cross, thou didst put to shame him who was boundlessly arrogant.
Translated by Isaac Lambertsen. Edition menaion.en.lambertsen.