According to the Apostolic Penitentiary, a partial indulgence is granted to those who on the feast of any Saint recite in his honour the oration of the Missal or any other approved by legitimate Authority.
Let us pray.
O God, Who, through the preaching of the Blessed Apostle Paul, hast caused the light of the Gospel to shine gloriously among the Gentiles, we beseech thee that we who keep the Feast of his birth, may, now that he is with thee, feel to our comfort that his prayer availeth much with thee.
Commemoration of St. Peter the Apostle
O God, Who hast given unto thy Blessed Apostle Peter the keys of the kingdom of heaven, and the power to bind and to loose, loose us, we beseech thee, at his mighty intercession, from all the bands of our sins.
Who livest and reignest with God the Father in the unity of the Holy Spirit, God, world without end.