II. The Lord’s Prayer

From The Catechism of the Catholic Church

2766
But Jesus does not give us a formula to repeat mechanically.¹⁴ As in
every vocal prayer, it is through the Word of God that the Holy Spirit teaches
the children of God to pray to their Father. Jesus not only gives us the words
of our filial prayer; at the same time he gives us the Spirit by whom these
words become in us “spirit and life.”¹⁵ Even more, the proof
and possibility of our filial prayer is that the Father “sent the Spirit
of his Son into our hearts, crying, ‘Abba! Father!'”¹⁶ Since our
prayer sets forth our desires before God, it is again the Father, “he who
searches the hearts of men,” who “knows what is the mind of the
Spirit, because the Spirit intercedes for the saints according to the will of
God.”¹⁷ The prayer to Our Father is inserted into the mysterious
mission of the Son and of the Spirit.