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The One Thing Is Three

How the Most Holy Trinity Explains Everything

Author(s): Michael Gaitley

ISBN13: 9781596142602

ISBN10: 159614260X

Publisher: Marian Press (15 Dec 2012)

Extent: 200 pages

Binding: Paperback

Size: 2.3 x 13.5 x 21 cm

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  • With humor and ease, Father Michael Gaitley, MIC, deftly unlocks the “one thing,” the key to the Church’s wisdom, and the greatest mystery of the Catholic faith: the Most Holy Trinity.


    Far from being a scholarly or academic read, The “One Thing” is Three makes deep theology accessible to every-day Catholics. What’s more, it makes even what’s familiar or forgotten appear in a way that’s new, exciting, and relevant. Thus, The “One Thing” is Three brings its readers a unique and powerful experience of the faith. It’s the perfect book for the Year of Faith.

  • Michael Gaitley







    Fr. Michael Gaitley, MIC was ordained to priesthood Saturday, October 16, 2010. Father Michael holds a Masters Degree in Theology from St. John Seminary in Massachusetts, and a Licentiate Degree in Spiritual Theology from the Dominican House of Studies in Washington, D.C. After 8 years of working on his book, Consoling the Heart of Jesus it was released in February 2010 with the creative campaign, Don't Give up Chocolate for Lent, Do this retreat instead.


    With some incredible endorsements from Cardinal Theodore McCarrick, Fr. Mitch Pacwa, Danielle Bean of Faith and Family magazine, and many more, the book is now in its 3rd printing. The uniqueness of this do-it-yourself retreat is that it combines the Spiritual Exercises of St. Ignatius with the teachings of Saints Therese of Lisieux, Faustina Kowalska and Louis de Montfort. Fr. Michael is the director of the Association of Marian Helpers in Stockbridge, Mass holding the honorary title of Fr. Joseph.

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    The One Thing Is Three is packed with deep theological insight, and while bursting with information, it writes from the heart and speaks to the heart in such a way that the reader is drawn into a greater realization about the nature, mission, and action of the Holy Trinity. I can think of no better timing than the Year of Faith for this book to be introduced. Fr. Gaitley has given us a great guide to help us in our knowledge and, therefore, our love for God the Father, God the Son, and God the Holy Spirit.


     - Bishop Daniel R. Jenky, CSC, Bishop of Peoria, Illinois


    The One Thing is Three by Fr. Michael Gaitley, MIC, is written for everyone. The conversational tone has an appeal that invites the reader into the journey of life. I highly recommend this book for anyone who loves the Church and seeks a deeper understanding of her teachings. Filled with references to Vatican II and Pope John Paul II, this book will enrich your belief in Gods plan of salvation, especially during the Year of Faith.


     - Bishop David Ricken, Diocese of Green Bay, Wisconsin


    Warning: This book is dangerous. It brims with wisdom and wonder, and with enthusiastic and infectious joy. If you want to preserve your comfortable categories and ideological classifications of Catholicism as either “liberal” or “conservative,” don’t read this book. It will turn your prejudices inside out and upside down.


    If you think the Church’s teachings are unintelligible, outdated, impersonal, boring, repressive, platitudinous, impractical, or irrelevant; if you think that theology makes no difference to the energy and joy with which you live your daily life; if you think Vatican II was a mistake; if you think John Paul II was not the greatest man of the 20th century; if you think the Church’s old dogmas, like the Trinity and practices like Marian devotion and Eucharistic Adoration, are “out of touch” with the modern world and modern youth; then this is the very best book for you. It will turn your myopia inside out.


    Imagine John Paul II writing a book on all the mysteries of Catholic theology in a simpler style than he ever used before. You’ve imagined this book.


    This is the very best example I have ever seen of “the new evangelization” in the form of a book for contemporary Catholics. It covers just about everything, yet slowly and clearly. If you wonder what God is doing in the Church today to convert and convince the modern world, read this book. It’s an amazing achievement: It’s simple enough for beginners and profound enough for professionals.


     - Peter Kreeft, Ph.D., Author, Speaker, and Professor of Philosophy, Boston College


    Fr. Michael Gaitley, MIC, has a holy passion not only to contemplate the truth and beauty of the Trinity but to communicate it, which he does here with practical wisdom and spiritual insight. Readers will gain a new understanding and appreciation of the mysteries of faith, based on what the Church teaches about the highest and holiest Mystery of all: The communion of the Holy Trinity is the source and criterion of truth in every relationship (CCC, n. 2845). Both inspiring and illuminating, I highly recommend this book.


     - Scott Hahn, Ph.D., Author, Speaker, Professor of Theology and Scripture, Franciscan University of Steubenville


    This is a beautiful book of Catholic teaching with personal stories and practical instruction that can easily be applied to everyday life, especially in this Year of Faith.


     - Teresa Tomeo, Syndicated Catholic Talk Show Host, Bestselling Catholic Author, Motivational Speaker


    In The One Thing Is Three, Fr. Gaitley, offers the perfect resource for all those who desire sanctity and wisdom but who are busy just trying to keep up with lifes constant demands. Whether youre new to the faith or a cradle Catholic like me, this book will unlock the treasures of Catholicism in a way thats clear, concise, and compelling.


     - Lisa M. Hendey, Founder of, Author of A Book of Saints for Catholic Moms