From Reflections from the Quiet Friary

Speaking of the words of exorcism:

In this ritual, the exorcist says to the devil: “Most cunning serpent, you shall no more dare to deceive the human race, persecute the Church, torment God’s elect and sift them as wheat (…) The sacred Sign of the Cross commands you, as does also the power of the mysteries of the Christian Faith (…) The glorious Mother of God, the Virgin Mary, commands you; she who by her humility and from the first moment of her Immaculate Conception crushed your proud head.”