Book excerpt: With contributions from some of today’s most significant theologians, Engaging Catholic Doctrine is an expression of gratitude to Matthew Levering for his generous collegiality and tireless work to chart a sure path for contemporary Catholic doctrine. Essayists significantly advance the work of Matthew Levering in the areas of Aquinas as a biblical theologian, the doctrine of the Trinity, the significance of sacrifice for authentically Christian worship, the recovery of virtue in moral theology, the theology of Joseph Ratzinger, and much more. In addition to celebrating and honoring Levering’s work, this volume offers new contributions in some of the key areas of theological research today. Matthew Levering is the James N. Jr. and Mary D. Perry Chair of Theology at Mundelein Seminary and serves as the co-editor of both Nova et Vetera and the International Journal of Systematic Theology. He completed an M.T.S. from Duke University and a Ph.D. from Boston College. A leading proponent of Thomistic ressourcement, he has authored over thirty books and edited or co-edited thirty more on topics in dogmatic, moral, spiritual, and historical theology. These include a nine-volume work of Catholic Dogmatics, as well as: Christ’s Fulfillment of Torah and Temple, Scripture and Metaphysics, Participatory Biblical Exegesis, The Betrayal of Charity, Did Jesus Rise from the Dead?, An Introduction to Vatican II as an Ongoing Theological Event, The Theology of St. Augustine, Dying and the Virtues, The Oxford Handbook of the Trinity, and Newman on Doctrinal Corruption.