The Early Church and Peter's Primacy

Letter XXXIX, from Pope Leo to Bishop Flavian of Constantinople

Synopsis: Leo’s anxiety at Flavian’s prolonged silence grows; he has sent letters regularly through suitable opportunities to support Flavian and prove Rome’s partnership in his labor; he confirms that the legates have reached Flavian with his written mandates; he has sent Basilius back as requested; and he now dispatches the letter through Eupsychius, urging Flavian to respond at once with a full account of what has been done.

Leo, bishop, to Bishop Flavian.

Leo’s Solicitude Grows at Flavian’s Silence; He Urges an Immediate Full Report

Your prolonged silence increases our solicitude. We have long received no letters from your beloved, though, solicitous for the defense of the faith, we have frequently sent letters to you through suitable opportunities, to support you with the comfort of our exhortations — so that you would not yield to the provocations of adversaries — proving that you have us as partners in your labor.

We believe our brothers have reached your brotherhood, through whom you retain fuller knowledge from our written mandates. We have sent Basilius back to you, as you wished. Now, lest you think any opportunity has been missed, we have directed this letter to you through our son the honorable and beloved Eupsychius, urging you to reply to our letters with all possible speed.

We ask you to inform us promptly of your actions, those of our representatives, and the full disposition of the entire cause — so that we, bearing solicitude for the defense of the faith, may relieve our desire with fuller and more favorable news.

Given on the third day before the Ides of August, in the consulship of Asturius and Protogenes, most illustrious men.

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Notes / Historical Commentary

Letter XXXIX is one of the most historically charged letters in the corpus — not for what it says but for what it does not know. Dated August 11, 449, it was written ten days after Ephesus II opened on August 1. By the time Leo writes this letter asking anxiously for news, the council had almost certainly already taken its catastrophic course: Dioscorus had presided, the Tome had never been read, Eutyches had been restored without repentance, and Flavian had been subjected to the violence that would kill him within months. But Leo does not know any of this. His letter is a request for information from a man who by this point may have been unable to respond freely, if at all.

The opening sentence states the solicitude formula directly: “Your prolonged silence increases our solicitude.” This is the sollicitudo of the Roman see — the universal pastoral responsibility Leo describes throughout the corpus — made urgent and personal by the absence of news from the East. Leo is not merely worried; he is describing his worry in the specific vocabulary of his office. The solicitude that belongs to the Apostolic See by its nature is what is being frustrated by Flavian’s silence.

The reference to the legates’ “written mandates” confirms that Leo still believes his representatives are operating at the council in accordance with his instructions — carrying the Tome, pressing for the confirmation of Eutyches’s condemnation. He does not yet know that the council has refused to hear them. The letter’s request for a “full account of the entire cause’s disposition” is the request of a bishop who expects to receive news of a successful outcome. Instead, when news finally reached Rome, it would be Hilarus the deacon’s single-word message: contradicitur — it has been opposed.

For the reader tracing the arc from the June 13 cluster through Ephesus II, Letter XXXIX marks the last moment of Leo’s confident engagement with the Eastern situation before the disaster becomes known. Everything from Letter XL onward belongs to the post-Latrocinium phase, though Leo does not yet know it.

The Early Church and Peter's Primacy