Sub Tuum Praesidium

The Sub Tuum Praesidium — "Under Thy Protection" — is the oldest known prayer to the Blessed Virgin Mary. It is older than the Hail Mary, older than the Salve Regina, older than every other Marian devotion that has come down to us. Its discovery on an Egyptian papyrus fragment revealed that Christians were praying to Mary, invoking her by the title Theotokos — Mother of God — centuries before the Council of Ephesus solemnly defined that title in 431 AD.

The papyrus fragment — known as Rylands Papyrus 470 — was acquired by the John Rylands Library in Manchester, England, in 1917 as part of a collection of Egyptian papyri. The text is written in Greek. Papyrologist Edgar Lobel initially dated it to approximately 250 AD, placing it in the era of the great Roman persecutions under Decius and Valerian, when Christians faced imprisonment, torture, and death for their faith. Scholar Colin Henderson Roberts subsequently proposed a 4th-century date. While some later scholars have argued for a date as late as the 6th or 7th century, the earlier dating remains widely accepted, and the Georgian Iadgari (Chantbook) of Jerusalem confirms the prayer was in liturgical use by the 5th century at the latest.

The significance of this dating cannot be overstated. If the papyrus dates to the mid-3rd century, it means that Christians were addressing Mary as Theotokos — God-bearer — and asking for her intercessory protection during the age of persecution, nearly two hundred years before Ephesus. This demolishes the common Protestant claim that Marian devotion was a late invention of the medieval Church. It was not. The earliest Christians, living under the shadow of martyrdom, turned instinctively to the Mother of God for protection — and left us the words they prayed.

The prayer's liturgical use spans both East and West. In the Coptic tradition, it was part of the Christmas liturgy. In the Byzantine rite, it is the final hymn of Vespers during Great Lent. In the Roman rite, it serves as the antiphon at Compline in the Little Office of the Blessed Virgin Mary, and may be used as the Marian antiphon after Compline or Vespers outside of Eastertide. In several medieval French dioceses, it replaced the Salve Regina as the final antiphon at Compline. In the Rite of Braga (Portugal), it is sung at the conclusion of the Mass itself.

In 2018, Pope Francis asked the entire Church to pray the Sub Tuum Praesidium daily throughout October, alongside the Rosary and the Prayer to St. Michael, for the protection of the Church. In his communiqué, he noted that "Russian mystics and the great saints of all the traditions advised, in moments of spiritual turbulence, to shelter beneath the mantle of the Holy Mother of God pronouncing the invocation 'Sub Tuum Praesidium.'"

The prayer has been set to music by some of the greatest composers in Western history, including Mozart, Beethoven, Charpentier, Salieri, and Zelenka.