CCC 2762

After showing how the psalms are the principal food of Christian prayer and flow together in the petitions of the Our Father, St. Augustine concludes:

Run through all the words of the holy prayers [in Scripture], and I do not think that you will find anything in them that is not contained and included in the Lord's Prayer.⁹ St. Augustine, Ep. 130, 12, 22: PL 33, 503PL — Patrologia Latina (Migne).