In the Extraordinary Form here is the Collect:
Præsta, quaesumus, omnípotens Deus: ut nullis nos permíttas perturbatiónibus cóncuti; quos in apostólicæ confessiónis petra solidásti.
Grant, we beseech You, almighty God, that we, whom You have made firm upon the rock of apostolic faith, may not be shaken by any distresses.
We stand upon the Rock who is Peter…. or… we… DON’T.
In the meantime, I love the Introit (John 21:18-19):
The Lord said to Peter, When you were young you girded yourself and walked where you would. But when you are old you will stretch forth your hands, and another will gird you, and lead you where you would not. Now this He said to signify by what manner of death he should glorify God.
Amen. And Amen.
Remember that today you can gain an indulgence (pretty easy to do in this Year of Mercy, anyway).
N.17—The faithful who use with devotion an object of piety (crucifix, cross, rosary, scapular or medal) properly blessed by any priest, can acquire a partial indulgence.
But if this object of piety is blessed by the Supreme Pontiff or any bishop, the faithful who use it devoutly can also acquire a plenary indulgence on the feast of the holy Apostles Peter and Paul, provided they also make a profession of faith using any legitimate formula.