This is the
rite of
exorcism described in
James Blish's
science fiction novel
A Case of Conscience. The main character attributes it to
Pope Gregory VIII, but I have been unable to independently verify this. Still, I suspect it would do in a pinch.
"I, a priest of Christ, do command ye, most foul spirits who do stir up these clouds, that ye depart from them, and disperse yourself into wild and untilled places, that ye may be no longer able to harm men or animals or fruits or herbs, or whatsoever is designed for human use:
"AND thou great Nothing, thou lustful and stupid one, Scrofa Stercorate, thou sooty spirit from Tartarus, I cast thee down, O Porcarie Pedicose, into the infernal kitchen:
"BY the apocalypse of Jesus Christ, which God hath given to make known unto His servants those things which are shortly to be; and hath signified, sending by his angel; I exorcise thee, angel of perversity:
"BY the seven gold candlesticks, and by one like unto the Son of Man, standing in the midst of the candlesticks; by His voice, as the voice of many waters; by His words, 'I am living, who was dead; and behold, I live forever and ever; and I have the keys of death and of Hell;' I say unto you, angel of perdition: depart, depart, DEPART!"