Their sound has gone out into all lands, and their message to the ends of the world. Psalm 19:4
Commemoration: Peter and Paul
Almighty God, whose blessed apostles Peter and Paul glorified you by their martyrdom: Grant that your Church, instructed by their teaching and example, and knit together in unity by your Spirit, may ever stand firm upon the one foundation, which is Jesus Christ our Lord; who lives and reigns with you, in the unity of the Holy Spirit, one God, for ever and ever. Amen.
Psalter: Psalm 107:1-32
Lessons: Numbers 20:1-13, Romans 5:12-21, Matthew 20:29-34
But with all these things this particular in the catalogue of his crimes was still wanting, that he was the first of the emperors who showed himself an enemy of the divine religion. The Roman Tertullian is likewise a witness of this. He writes as follows: "Examine your records. There you will find that Nero was the first that persecuted this doctrine, particularly then when after subduing all the east, he exercised his cruelty against all at Rome. We glory in having such a man the leader in our punishment. For whoever knows him can understand that nothing was condemned by Nero unless it was something of great excellence."
Thus publicly announcing himself as the first among God's chief enemies, he was led on to the slaughter of the apostles.
It is, therefore, recorded that Paul was beheaded in Rome itself, and that Peter likewise was crucified under Nero. This account of Peter and Paul is substantiated by the fact that their names are preserved in the cemeteries of that place even to the present day.
It is confirmed likewise by Caius, a member of the Church, who arose under Zephyrinus, bishop of Rome. He, in a published disputation with Proclus, the leader of the Phrygian heresy, speaks as follows concerning the places where the sacred corpses of the aforesaid apostles are laid: "But I can show the trophies of the apostles. For if you will go to the Vatican or to the Ostian way, you will find the trophies of those who laid the foundations of this church."
And that they both suffered martyrdom at the same time is stated by Dionysius, bishop of Corinth, in his epistle to the Romans, in the following words: "You have thus by such an admonition bound together the planting of Peter and of Paul at Rome and Corinth. For both of them planted and likewise taught us in our Corinth. And they taught together in like manner in Italy, and suffered martyrdom at the same time."
I have quoted these things in order that the truth of the history might be still more confirmed.