Aposticha stichera from the Octoechos; and Glory...., in Tone VI—

Peter, the rock of faith, the fervent intercessor, doth again invite us together to a spiritual feast, setting before us his precious chains as though they were food most rich, unto the healing of infirmities, the consolation of the sorrowful and the safe anchorage of the tempest-tossed. Come ye all, and, kissing them, let us entreat Him Who glorified him, saying: By his supplications, O Christ, save Thou our souls!

Now & ever...: Theotokion, or this stavrotheotokion—

Troparion, in Tone IV—

Seeing Thee crucified, O Christ, she who gave birth unto Thee cried out: “What is this strange mystery that I see, O my Son? How is it that Thou diest, suspended upon the Tree, O Bestower of life?”

Without leaving Rome, thou art come to us in the precious chains which thou didst bear, O first-enthroned of the apostles; and, bowing down before them with faith we pray: By thy supplications unto God grant us great mercy!