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MyPrayerTower
PrayersDecember 17, 2025

The O Antiphons — Ancient Codes for the Messiah

From Dec 17-23, the Church prays 7 special titles for Jesus. Discover the hidden 'ERO CRAS' message.

M
MyPrayerTower Team
5 min read Spiritual Study

If you sing "O Come, O Come Emmanuel," you know the O Antiphons. They are short prayers recited before the Magnificat during Vespers in the final week of Advent.

The 7 Titles

  1. O Sapientia (Wisdom) - Dec 17
  2. O Adonai (Lord) - Dec 18
  3. O Radix Jesse (Root of Jesse) - Dec 19
  4. O Clavis David (Key of David) - Dec 20
  5. O Oriens (Rising Sun) - Dec 21
  6. O Rex Gentium (King of Nations) - Dec 22
  7. O Emmanuel (God with Us) - Dec 23

The Code

Take the first letter of each Latin title in reverse: Emmanuel, Rex, Oriens, Clavis, Radix, Adonai, Sapientia. ERO CRAS. Translation: "Tomorrow, I will be there." The monks who arranged this were geniuses.


Pray one each day. Find the texts on the MyPrayerTower app.

"O Mary, conceived without sin, pray for us who have recourse to thee."
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