Scott Hahn says, "Fr. Mullady offers a readable and rock-solidly reliable treatment of what is surely the most important-and debated-subject in contemporary Catholic theology. His approach to the doctrine of the Church (ecclesiology) demonstrates the profound consistency and coherence of the Magisterium’s teaching, as it draws from biblical and patristic sources and develops from the medieval to the modern period, culminating in Vatican II’s Dogmatic Constitution on the Church (Lumen Gentium). In the process, Fr. Mullady applies a ‘hermeneutic of continuity’ to show the deep convergence of Vatican I and Vatican II (no small feat!). Along the way, readers gain a renewed sense of the indispensable role of classical Thomism for doing Catholic theology - with precision, fidelity and flexibility."