Freed from a Contract with the Devil

Eutychian, Patriarch of Constantinople, relates the following well-known story of Theophilus (6th century). The Patriarch was an eyewitness of the fact which we relate here, and which is also confirmed by St. Peter Damian, St. Bernard, St. Bonaventure, St. Antoninus, and others.
Theophilus was an archdeacon of the Church of Adanas, a city of Cilicia, and was so well esteemed that the people wished him to become their bishop, but his humility prevented his consent.
Afterwards, some malicious persons slandered him, and he was deposed from his office. Upset and blinded by passion, he went to a magician, who induced him to apply to Satan for help in his misfortunes.
The devil answered that if he wished his assistance, he must renounce Jesus, and Mary his mother, and hand over to him the act of renunciation, written with his own hand.  Theophilus executed the vile document. On the following day the bishop, having heard of the wrong done him by his calumniators, asked his forgiveness, and restored him to his office. 
But Theophilus began to feel so tortured by the pangs of remorse over the great crime he had committed, that he wept continually.
Entering a church, he prostrated himself in tears before an altar of the Blessed Virgin, exclaiming: “O, mother of God, having you who art so merciful, I will not despair of your help.”
Thus he persevered for forty days, weeping and praying to the Holy Virgin.
Behold, one night the mother of mercy appeared to him and said: “O, Theophilus, what have you done? You have renounced my friendship and that of my Son, and for whom, but for the sake of your enemy and mine!”
“O, Lady,” answered Theophilus, “it is in thy hand to pardon me, and to obtain my pardon from thy Son.”
Then, Mary, seeing his confidence, answered, “Take courage and I will pray for thee.”
Theophilus, encouraged by these words, redoubled his tears, his penance, and his prayers, remaining constantly at the foot of the altar. And, behold, Mary appeared to him again, and with a joyful countenance said to him:
“Theophilus, rejoice, I have presented thy tears and thy prayers to God; He hath accepted them, and hath already pardoned thee; henceforth be grateful and faithful.”
“Lady,” replied Theophilus, “this is not sufficient to console me; the enemy still possesses the impious deed, by which I have renounced thee and thy Son; thou canst obtain it for me.”
After three days, Theophilus awoke one night, and found the paper on his breast.
The next day, when the bishop with a large assembly were present in church, Theophilus cast himself at his feet, related the whole story, weeping bitterly, and handed him the infamous writing, which the bishop immediately ordered to be burned in the presence of the congregation. The people wept for joy, praising the goodness of God, and the mercy of Mary towards that miserable sinner.
Theophilus returned to the church of the Virgin, and there, three days later, died happily, with thanksgivings to Jesus and his holy mother on his lips.
References:  Glories of Mary, New Revised Edition of 1888, p.196