Roman Catechism 41.1

Chapter 41 — Part IV: Prayer — The Seventh Petition: Deliver Us from Evil

Section 1. The Importance Of Instruction On This Petition — This Petition with which the Son of God concludes this divine prayer embodies the substance of all the other Petitions. To show its force and importance our Lord made use of this Petition when, on the eve of His Passion, He prayed to God His Father for the salvation of mankind. I pray, He said, that thou keep them from evil. In this Petition, then, which He not only commanded us to use, but made use of Himself, He has epitomised, as it were, the meaning and spirit of all the other Petitions. For if we obtain what this Petition asks, that is, the protection of God against evil, which enables us to stand secure and safe against the machinations of the world and the devil, then, as St. Cyprian remarks, nothing more remains to be asked.