The Book That Shouldn’t Exist
How a Greek Orthodox Bishop Walked Into a Library in 1873 and Found a First-Century Eucharistic Prayer That Orthodox Christians Are Still Praying Today
Picture this, nope not a small country farm, 1873 Constantinople. Now called Istanbul. But in 1873 it was still the seat of the Ecumenical Patriarchate of the Orthodox Church. A Greek Orthodox bishop named Philotheos Bryennios is working in the library of the Monastery of the Holy Sepulcher in the Greek quarter of the city.1 He is in his fourth decade. He has a beard you could shelter a small family in. He is a serious scholar - had studied in Germany, reads Greek the way most people read their own first language, knows the manuscripts and the Fathers cold.
He is pulling codices off shelves. Looking. Cataloging. The kind of patient, unglamorous work that academic libraries are full of at any given moment.
And at some point - we don’t know exactly which afternoon, which hour, but it happened - he pulls down a 1056 AD Byzantine codex. Opens it. Starts reading.
Inside are some things he already knows about. A letter attributed to Clement of Rome. A couple of Epistles of Barnabas. Standard patristic library material. Fine. Interesting. Nothing you’d call a sensation.
And then, tucked between these other documents, he turns a page and finds something that makes his hand stop moving across the parchment.
A title at the top of the page.
Διδαχὴ τῶν δώδεκα ἀποστόλων.
The Teaching of the Twelve Apostles.
What Bishop Bryennios is holding in his hands is a document that the Christian Church has not seen in roughly fourteen hundred years. It is mentioned by name in Eusebius, in Athanasius, in Clement of Alexandria - the greatest Fathers of the fourth century knew this book existed, knew it was very old, and some of them even thought it belonged in the New Testament canon. But the text itself had vanished. Lost. Gone. Nobody in the Western Church had laid eyes on it since the early Middle Ages. It existed only as a rumor. A ghost in the footnotes of people more famous than itself.
And Bishop Bryennios just pulled it off a shelf.
He does what any careful scholar does. He closes the book. He goes home. He takes a breath. He comes back. He reads it again. Then he sits on the discovery for ten years (I am not making this up - ten years - because he wants to make sure he has it right), and in 1883 he publishes it.
The world promptly loses its mind.
Catholic scholars, Protestant scholars, Orthodox scholars, secular scholars, all of them - they have in their hands a document that, depending on how you date it, might be older than some of the books of the New Testament. A first-century Christian handbook. A manual for baptism, fasting, prayer, Eucharist, and community life, written by somebody, for somebody, in the generation of the Apostles themselves or the generation right after.
The document has a short, formal title, but in the almost 150 years since its rediscovery it has come to be known by a single Greek word.
The Didache (pronounced did-ah-KAY, or, if you are getting fancy, did-ah-KHAY - it rhymes with “okay” and it means “teaching”).2
And when Orthodox Christians read it - I mean really read it, slowly, with the Divine Liturgy in their memory - something strange happens.
They recognize the prayers.
Not vaguely. Not in spirit. Not structurally.
Word for word.
Let me show you what I mean.
What We Actually Have
Let me establish what we are dealing with before we get to the payoff, because you deserve to know how strong the evidence actually is.
The Didache is a short document - sixteen brief chapters, maybe four thousand words in English translation. It has four parts:
The Two Ways (chapters 1-6): A moral catechism based on the Jewish “two ways” teaching tradition - the way of life versus the way of death - re-framed for Christian use. This is the part that gets used to prepare catechumens for baptism.
The Liturgical Section (chapters 7-10): Instructions for baptism, fasting, the Lord’s Prayer (prayed three times daily), and the Eucharist.
The Community Section (chapters 11-15): How to receive traveling prophets and apostles, how to appoint bishops and deacons, how to hold Sunday worship.
The Eschatological Section (chapter 16): Watch for the coming of the Lord.
The document is anonymous. It calls itself “The Lord’s Teaching Through the Twelve Apostles to the Nations” - which is not a claim to have been written by the Twelve, but a claim to be preserving what they taught. It is written in Greek. It almost certainly emerged from a Jewish-Christian community in Syria or possibly Palestine or Egypt.
And here is the thing that matters most: it describes Christian worship.
Not abstract theology. Not apologetic. Not a gospel narrative. Christian worship. How to baptize. How to pray. How to give thanks over the bread and the cup. What to do on the Lord’s Day. Which prayers to use.
This is the oldest surviving Christian worship manual we have.
And the question is - how old is it, really?
The Dating Fight
Scholarly dating of the Didache has ranged, at the extremes, from about 40 AD to about 150 AD.3 That is a genuinely wide range that is still debated.
Let me walk you through where the consensus is.
The early end of the range (50-70 AD). A significant minority of serious scholars, Jean-Paul Audet being the classic example, Alan Garrow and others more recently, argue that the Didache is pre-70 AD. Some of them think it may be older than parts of the New Testament. Their arguments are structural: the church organization the Didache describes (itinerant apostles, prophets, and teachers with only rudimentary local bishops and deacons) looks earlier than what we see in Paul’s Pastoral Epistles or in Ignatius of Antioch. Its liturgical instructions presume no institution narrative in the Eucharistic prayer, no “on the night he was betrayed, he took bread...” which is the kind of simplicity that many scholars believe reflects a very early stage of development. Its Jewish character is deep enough to suggest a community still in close conversation with Jewish worship, which fits better with pre-70 AD conditions than with the late first century after the break with the synagogue hardened.
The middle of the range (80-100 AD). Most serious scholars land here. Michael Holmes, editor of the standard Loeb Classical Library edition of the Apostolic Fathers, writes that while the Didache “may have been put into its present form as late as 150, though a date considerably closer to the end of the first century seems more probable.“4 This is the consensus comfort zone. Late first century. Roughly contemporary with the Gospel of John. Older than 2 Peter. Older than Jude. Older than Revelation.
The late end of the range (100-150 AD). A small group of scholars argues for a second-century date, usually citing the relative sophistication of some passages or the possibility that the author knew the Gospel of Matthew. Even these scholars, though, generally acknowledge that the Didache is preserving much older material, Jewish-Christian prayers and teachings that go back substantially earlier than the date of the final redaction.
Here is the important takeaway. Even the latest plausible dating of the Didache places it within living memory of the Apostles. And the most plausible dating places it in the late first century - composed by someone who could have shaken hands with people who shook hands with the Twelve.
But the dating of the final text is not really the most important question. The most important question is: how old are the prayers inside it?
Because the prayers inside a liturgical manual are almost never newly-composed at the time of writing. Liturgical manuals preserve prayers. They write down what is already being prayed. Which means the prayers in the Didache are older than the Didache itself.
How much older? We cannot know exactly. But the scholarly consensus is that the Eucharistic prayers in chapters 9-10 reflect very early Jewish-Christian practice, quite possibly going back to the apostolic period itself. Jewish liturgical scholars have shown that the prayers in Didache 10 are a direct Christian adaptation of the birkat ha-mazon, the Jewish grace after meals.5 Same structure. Same movements. Same grammatical patterns. Christianized in content - but Jewish in its bones.
Which means what we are reading, when we read Didache 9-10, is something very close to the actual Eucharistic prayers used by the apostolic generation itself.
Let me show you what they say.
Didache 9 - The Prayers Over the Cup and the Bread
Here is the text of Didache 9, in a standard English translation.6 I have formatted it to make the structure visible.
Now concerning the Eucharist, give thanks this way.
First, concerning the cup:
We thank you, our Father, for the holy vine of David your servant, which you made known to us through Jesus your Servant; to you be the glory forever.
And concerning the broken bread:
We thank you, our Father, for the life and knowledge which you made known to us through Jesus your Servant; to you be the glory forever.
Even as this broken bread was scattered over the hills, and was gathered together and became one, so let your Church be gathered together from the ends of the earth into your kingdom; for yours is the glory and the power through Jesus Christ forever.
But let no one eat or drink of your Eucharist unless they have been baptized into the name of the Lord; for concerning this also the Lord has said, “Give not that which is holy unto dogs.”
Read that again. Slowly. Out loud if you can.
I want you to notice four things about what you just read.
It is a thanksgiving. The word Eucharist (Greek eucharistia) literally means “thanksgiving.” And the prayers are, precisely and structurally, prayers of thanksgiving. We thank you, our Father. Twice. Over the cup. Over the bread. This is the theological shape of the Eucharistic action itself. Christ gave thanks before He broke the bread, Paul says Christ “took bread, and when he had given thanks, he brake it” (1 Corinthians 11:24). The Didache is preserving, at the earliest possible documentary level, the most ancient Christian name for this act. Thanksgiving. Eucharist.
It is addressed to the Father. “We thank you, our Father.” Not to Jesus directly. Not to the Holy Spirit. To the Father, through Jesus His Servant (Greek pais, which can mean “servant” or “child”). This is what the scholars call the “through Christ” structure of early Eucharistic prayer - we pray to the Father, through the Son, in the Spirit. The trinitarian grammar is already there in the earliest known text.
The image of the scattered grain. Even as this broken bread was scattered over the hills, and was gathered together and became one, so let your Church be gathered together from the ends of the earth into your kingdom. Stop and sit with that image. The bread was once scattered - individual grains of wheat, grown on different hillsides - and has been gathered into a single loaf. And that gathering of grain into bread is a sign of something else: the Church, scattered across the earth, being gathered into one through the Eucharist. It is an ecclesiology built into the prayer. You are what you eat. The Church becomes one body by eating the one bread.
And this is the one that should stop you cold. “Let no one eat or drink of your Eucharist unless they have been baptized into the name of the Lord.”
The Didache, in the first century or close to it, is drawing a line around the Eucharistic table that Orthodoxy still draws today.
Closed communion. Not a cultural quirk. Not a medieval development. Not a Byzantine innovation. Not a late piece of gatekeeping dreamed up to keep people out. It was there from the beginning. The baptized alone ate and drank. Every other Christian who showed up was welcome to hear the readings, welcome to hear the homily, welcome to pray - but the Eucharist was for those who had passed through the waters.7
If you have ever been to an Orthodox parish and been told you could not receive communion because you were not Orthodox, and you felt hurt by that, I understand. I really do. But I want you to understand what is actually happening. The Orthodox Church is not being rude to you. The Orthodox Church is doing what the Didache - The teachings of the 12 apostles - told the Church to do in the first century. The instruction has not changed. The Church has not moved. It is doing the same thing it was told to do by the Apostles themselves.
Now let me show you chapter 10.
Didache 10 - The Prayer After Communion
But after you are filled, give thanks this way:
We thank you, holy Father, for your holy name which you caused to tabernacle in our hearts, and for the knowledge and faith and immortality which you made known to us through Jesus your Servant; to you be the glory forever.
You, Master Almighty, created all things for your name’s sake; you gave food and drink to men for enjoyment, that they might give thanks to you; but to us you freely gave spiritual food and drink and life eternal through your Servant.
Before all things we thank you that you are mighty; to you be the glory forever.
Remember, Lord, your Church, to deliver it from all evil and to make it perfect in your love, and gather it together from the four winds, sanctified for your kingdom which you have prepared for it; for yours is the power and the glory forever.
Let grace come, and let this world pass away. Hosanna to the Son of David! If anyone is holy, let him come; if anyone is not, let him repent. Maranatha. Amen.
Maranatha is an Aramaic word. It means “Our Lord, come!” It is preserved here, in the Greek text of the Didache, untranslated - the same way Paul preserves it untranslated in 1 Corinthians 16:22. Maranatha. The prayer for the return of Christ.
That one word is doing enormous historical work. The author of the Didache, writing in Greek, feels the need to preserve the original Aramaic. Which means this prayer was so ancient, so deeply rooted in the apostolic community, that even in a Greek-speaking context it was still prayed in the original Aramaic of the earliest Jewish-Christian Church in Jerusalem.
This is what the Twelve prayed.
Not might have prayed. Not probably prayed. Prayed. In the Upper Room. In the Temple courts. In the homes where they broke bread daily. The Aramaic word that the author of the Didache preserves untranslated is the same word the Apostles shouted in their own language when they longed for their Lord to return.
