Doyle constructs communion ecclesiology as a broad and inclusive category that makes room for a range of legitimate approaches. He examines the approaches of Johann Adam Mohler, Charles Journet, Henri de Lubac, Yves Congar, Karl Rahner, Hans Urs von Balthasar, Elizabeth Johnson, Joseph Ratzinger and many others.

This book examines the relationship between divine in/activity and human agency in the five books of the Megilloth-the books of Ruth, Song of Songs, Ecclesiastes, Lamentations, and Esther. As works of literature dating to the early Second Temple period (ca. 6th-3rd centuries BCE), these books and the implicit interpretation of these particular themes reflect the diverse cultural and theological dynamics of the time. Megan Fullerton Strollo contends that the themes themselves as well as the correlation between them should be interpreted as implicit theology insofar as they represent reflective interpretation of earlier theological traditions. With regard to divine in/activity, she argues that the Megilloth presents a certain level of skepticism or critical analysis of the Deity. From doubt to protest, the books of the Megilloth grapple with received traditions of divine providence and present experiences of absence, abandonment, and distance. As a correlative to divine in/activity, human agency is presented as consequential. In addition, the portrayal of human agency serves as a theological response insofar as the books advance the theme through specific references to and reevaluations of earlier theocentric traditions.