Be off, Satan, from this door and from these four walls. This is no place for you; there is nothing for you to do here. This is the place for Peter and Paul and the holy Gospel; and this is where I mean to sleep, now that my worship is done, in the name of the Father and of the Holy Spirit.
Father, in the name of our Lord Jesus Christ, send me your Spirit; instill the wisdom of your Holy Spirit into my heart; protect my soul and body, every limb in my body, every fiber of my being, from all possible harm and all traps the Devil may set for me and every temptation to sin.
Source: Euchologium Sinaiticum
Source of this version: The One Year Book of Personal Prayer, © 1991 Tyndale House Publishers (January 24)
Above, the word “Father” in the second paragraph is added so that the prayer does not seem to be addressed to Satan.
Be off, Satan, from this floor…