Cyprian the Holy Martyr, Justina the Virgin-martyr of Nicomedea

Reading from the Synaxarion:

Saint Justina who was from Damascus, lived in virginity for the sake of
Christ. Saint Cyprian, who was from Antioch, began as an initiate of
magic and worshipper of the demons. A certain foolish young man who had
been smitten with Justina's beauty hired Cyprian to draw her to love
him; when Cyprian had wed every demonic device he knew, and had
failed, being repulsed by the power of Christ Whom Justina invoked, he
understood the weakness of the demons and came to know the truth. Delivered
from demonic delusion, he came to Christ and burned all his books of
magic, was baptized, and later ascended the episcopal throne in his
country. Later, he and Justina were arrested by the Count of Damascus, and
having endured many torments at his hands, they were sent finally to
Diocletian in Nicomedia, where they were beheaded about the year 304.

Apolytikion in the Fourth Tone
As a sharer of the ways and a successor to the throne of the
Apostles, O inspired of God, thou foundest discipline to be a means of
ascent to divine vision. Wherefore, having rightly divided the word of
truth, thou didst also contest for the Faith even unto blood, O
Hieromartyr Cyprian. Intercede with Christ our God that our souls be saved.

Kontakion in the First Tone
When thou, O godly-minded one, hadst been converted from magic art to
knowledge of God, thou becamest a most skilful healer for the whole world,
O wise Cyprian, granting cures to them that honour thee with
Justina; with her, pray the man-befriending Master to save us, thy
servants who sing thy praise.