Chair of St. Peter

O God, who didst bestow upon thy blessed Apostle Saint Peter the keys of the Kingdom of Heaven, and didst appoint unto him the priesthood for the binding and loosing of sin: grant, we beseech thee; that by the help of his intercession we may be delivered from the bonds of all our iniquities; who livest and reigneth with the Father in the unity of the Holy Ghost, ever one God, world without end. Amen.