Catholic Ecumenism: The Reunion of Christendom in Contemporary Papal Documents
- Product Code: ce
- Publication date: June 1, 2026
- Pages: 260
- Size: 5.5 x 8.5
$19.95
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Catholic ecumenism Papal documents The See of Peter Reunion of Christendom Imprimatur · 1953
Ecumenism is often discussed in slogans, anxieties, and competing instincts. Fr. Hanahoe’s work returns the question to first principles: revelation, authority, the unity of the Church, the status of separated Christians, and the true goal of reunion.
careful doctrine · clear principles · charity ordered by truth · unity in the Church Christ founded
✠ OVERVIEW ✠Catholic Ecumenism, in its special sense, is that divinely-commanded and divinely-sustained work of reconciliation, which has for its object the conversion and return of baptized dissidents to the unity of the Mystical Body of Christ, which involves their acceptance of the faith and communion of the See of Peter and the Catholic Church throughout the world.
Originally published in 1953, this work, under the guidance of Monsignor Joseph Clifford Fenton, the editor of The American Ecclesiastical Review, is sure to be an illuminating study on this often contentious but important issue in the Church.
A theological work, not a slogan
Fr. Hanahoe does not treat ecumenism as a vague mood of fraternity or as a tactical pastoral program. He studies its principles from the official documents of the Holy See and places the question inside Catholic doctrine on the Church.
❦ WHY THIS BOOK MATTERS ❦Before the Council
The book shows that Catholic reflection on ecumenism predates the 1960s and rests upon older magisterial foundations.
The papal sources
Hanahoe draws from documents of Pius IX, Leo XIII, Pius XI, Pius XII, and the Holy Office.
Truth and charity
The work refuses both indifference and harshness: reunion must be sought with charity under the governance of truth.
A clear goal
Catholic ecumenism aims at the visible unity Christ willed: one faith, one communion, and the See of Peter.
✠ ☧ ✠The book’s strength lies in its calm theological architecture: first the existence of Catholic ecumenism, then its nature, then the point of departure, the goal of reunion, and the manner by which reunion must be sought.
✦ THE CENTRAL QUESTIONS ✦1. What does “Catholic ecumenism” mean when it is defined from the Church’s own doctrine rather than from modern religious diplomacy?
2. Why must any movement toward reunion begin with Divine Revelation and the authority of the Holy See?
3. How does the unicity and visible unity of the Church shape the Catholic answer to divided Christendom?
4. What does communion with the See of Peter mean for the reunion of separated Christians?
5. How can Catholics speak clearly about doctrine while still acting with real charity toward separated brethren?
6. Why does Hanahoe warn against compromise, ambiguity, and any approach that weakens the supernatural order of faith?
❦ INSIDE THE VOLUME ❦Part One
Existence of a Catholic Ecumenism
The concept of ecumenism, its basic ideas, its papal sources, and the desire of the Holy See for reunion.
Part Two
Nature of Catholic Ecumenism
The goal of reunion, the point of departure, the way to unity, and the theological logic of corporate reunion.
Appendix
Ecumenism and Conversions
Hanahoe’s 1959 essay from The American Ecclesiastical Review, included as a companion treatment.
✦ BOOK DETAILS ✦Title
Catholic Ecumenism
Subtitle
The Reunion of Christendom in Contemporary Papal Documents
Author
Fr. Edward Francis Hanahoe, S.A., S.T.L.
Original publication
1953 dissertation, The Catholic University of America
Publication date
Forthcoming
Format
260 pages · 5.5 x 8.5 · Paperback and hardcover
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Foreword Two Parts Five Chapters Appendix Essay Bibliography and Index
The contents reveal the disciplined construction of the book. Hanahoe begins with the existence of a Catholic ecumenism, moves to its nature, and then treats the goal of reunion, the point of departure, the path to unity, and the practical question of conversions.
Divine Revelation · Holy See · Unicity · Unity · Communion · Corporate Reunion · Conversion
❦ HOW TO READ THE CONTENTS ❦Front matter
The foreword prepares the reader for a preconciliar theological treatment of ecumenism, locating Hanahoe’s work within the Catholic University of America, the American Ecclesiastical Review, and the school of Msgr. Joseph Clifford Fenton.
Part One
The first part asks whether there is such a thing as a specifically Catholic ecumenism. Hanahoe answers by defining the term, clarifying the basic ideas, and then showing that the Holy See itself desired the reunion of separated Christians according to Catholic principles.
Part Two
The second part gives the theological architecture of reunion: the one Church founded by Christ, her visible unity, communion with the See of Peter, the concrete fact of separation, and the manner by which separated communities may return.
Appendix
The appendix, “Ecumenism and Conversions,” extends the dissertation’s argument into a practical question: how zeal for reunion relates to individual conversions and why authentic ecumenism cannot weaken missionary charity.
Scholarly apparatus
The bibliography and index make the volume useful for study: books, articles, and papal documents are gathered so the reader can trace Hanahoe’s claims back to their theological and magisterial sources.
✠ FRONT MATTER ✠xi
Foreword
1
PART ONE: Existence of a Catholic Ecumenism
❦ PART ONE ❦Introduction · p. 3
Criteria of Evaluation
The principles of reunion must be drawn from Divine Revelation and sanctioned by Divine Authority. This opening gives the reader the theological standard by which every later claim is judged.
Chapter One · p. 7
The Concept of Ecumenism
1. Basic ideas · p. 7
2. Papal sources · p. 20
This chapter defines the field of inquiry and distinguishes Catholic ecumenism from vague religious cooperation or doctrinal compromise.Chapter Two · p. 26
Desire of the Holy See
Hanahoe examines the Holy See’s positive desire for true Christian reunion and the principles that govern it. The chapter shows that the Catholic desire for unity is neither indifferentism nor sectarian refusal, but an act of charity governed by truth.
✦ PART TWO ✦p. 37
PART TWO: Nature of Catholic Ecumenism
Introduction · p. 39
Part Two moves from the fact that Catholic ecumenism exists to the theological question of what it is: its goal, starting point, and proper method.Chapter One · p. 41
The Goal of Reunion
1. The Unicity of the Church · p. 41
2. Unity of the Church · p. 47
3. Communion with the See of Peter · p. 64
The goal of reunion is concrete and visible: communion in the one Church of Christ, under the divinely instituted authority of Peter.Chapter Two · p. 80
The Point of Departure
1. The Fact of Separation · p. 80
2. Implications of Separation · p. 89
Hanahoe considers the theological reality of separation and the pastoral consequences for those born into communities separated from Catholic unity.Chapter Three · p. 104
The Way to Unity
1. The Basic Principle · p. 104
2. The Manner of Reunion · p. 112
Section 1: Corporate reunion in itself · p. 113
Section 2: Some applications · p. 125
The final chapter studies how unity is to be sought, especially through corporate reunion rightly understood and applied.❦ CLOSING MATERIALS ❦169
Summary and Conclusion
Draws the doctrinal argument together and restates the governing principles for reunion.
183
Appendix: Ecumenism and Conversions
A later essay clarifying how ecumenical work relates to conversions, missionary zeal, and Catholic witness.
207
Bibliography
Books · p. 207
Articles · p. 226
Papal Documents · p. 232235
Index
A practical guide for locating names, doctrines, papal texts, and theological themes.
242
About the Author
Places Fr. Hanahoe’s study within his priestly, theological, and Franciscan context.
✦ COMPLETE CONTENTS ✦Foreword xiPART ONE: Existence of a Catholic Ecumenism 1Introduction 3CHAPTER ONE: The Concept of Ecumenism 71. Basic ideas 72. Papal Sources 20CHAPTER TWO: Desire of the Holy See 26PART TWO: Nature of Catholic Ecumenism 37Introduction 39CHAPTER ONE: The Goal of Reunion 411. The Unicity of the Church 412. Unity of the Church 473. Communion with the See of Peter 64CHAPTER TWO: The Point of Departure 801. The Fact of Separation 802. Implications of Separation 89CHAPTER THREE: The Way to Unity 1041. The Basic Principle 1042. The Manner of Reunion 112Section 1: Corporate reunion in itself 113Section 2: Some applications 125Summary and Conclusion 169Appendix: Ecumenism and Conversions 183Bibliography: Books, Articles, Papal Documents 207Index 235About the Author 242 -
Sound principles Full visible communion Preconciliar strength Traditional doctrine Christian reunion
The endorsements below emphasize the book’s continuing value: Hanahoe provides an account of ecumenism rooted in authoritative sources, ordered toward visible unity, and capable of correcting both sentimental ecumenism and wholesale rejection of the Church’s work for reunion.
same faith · same sacraments · apostolic ministry · visible unity · the See of Peter
✠ ENDORSEMENTS ✠
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