In the Epistle we ask for “deliverance” from corruption into the “liberty” enjoyed by a child of God. The Gradual continues the theme of asking for help from God lest the “Gentiles” ridicule our religion.
The Gospel teaches that Christ is the great Fisher of Men who relies upon the Apostles, priests and Bishops, for success. We are the fish drawn out of the water by the teaching of Christ from the sea of the world.
In the Offertory we ask Jesus to “enlighten my eyes” and in the Secret entreat Him to “draw our rebellious wills” to Him. The Communion reflects the sentiment that the Lord is my “firmament...and...refuge,”
While the Postcommunion tells us that the Mass and Holy Sacrament of the Altar will “purify” our hearts and protect us. Today the Vigil of SS Peter and Paul Apostles is commemorated in the Mass. A slight bow is made by the celebrant toward the Crucifix at mention of their holy names.