The “Word of the Father” Chord: Theology and Harmony Meet at Christmas

Mark Haas · December 13, 2025

It is fitting that the most exquisite chord in Adeste Fideles coincides with the most profound line of theology.

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About Mark Haas

Mark Haas is a composer and speaker whose music has been sung in over 600 parishes and 10 countries. He serves as the Music Director at Ave Maria Parish in Ave Maria, Florida where he lives with his wife and seven children.—(Read full biography).

Music List • “Trinity Sunday” (Year A)

Readers have expressed interest in seeing the ORDER OF MUSIC I created for Trinity Sunday—a.k.a. “Dominica I post Pentecosten”—which is 31 May 2026. Please feel free to download it as a PDF file if that appeals to you. The hymns chosen are fairly traditional, but truly excellent (the Communion hymn especially stands out). The ENTRANCE CHANT radiates pure bliss, overflowing with joy.

—Jeff Ostrowski

“Entrance Chant” • Feast of Corpus Christi

While simultaneously accompanying myself on the pipe organ, I recently recorded the INTROIT (“Entrance Chant”) for the feast of Corpus Christi, Years ABC. A whole crop of musical scores—which you really should investigate—have found a home at the flourishing feasts website.

—Jeff Ostrowski

Music List • “Ascension of the Lord”

Readers have expressed interest in examining my “music list” for this coming Sunday.

To access this post, you must purchase Monthly Subscription or Yearly Subscription.

—Jeff Ostrowski

“Thee” + “Thou” + “Thine”

Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).

—Jeff Ostrowski

“Reminder” — Month of May (2026)

On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.

—Jeff Ostrowski

Simplified Version • “Canon in D” (Pachelbel)

I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.

—Jeff Ostrowski

The “Word of the Father” Chord: Theology and Harmony Meet at Christmas

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