Barring my faulty memory (and if I’m not lazy) I want to post prayers on Monday from all over Church History and then throughout the modern day, and then my own. This one comes from Polycarp.
Lord, almighty God, Father of your beloved and blessed Son Jesus Christ, through whom we have come to the knowledge of yourself, God of angels, of powers, of all creation, of all the race of saints who live in your sight, I bless you for judging me worthy of this day, this hour, so that in the company of the martyrs I may share the cup of Christ, your anointed one, and so rise again to eternal life in soul and body, immortal through the power of the Holy Spirit.
May I be received among the martyrs in your presence today as a rich and pleasing sacrifice. God of truth, stranger to falsehood, you have prepared this and revealed it to me and now you have fulfilled your promise.
I praise you for all things, I bless you, I glorify you through the eternal priest of heaven, Jesus Christ, your beloved Son. Through him be glory to you, together with him and the Holy Spirit, now and forever. Amen.