The Constitution of Christ
Bernard Lonergan's De Constitutione Christi emerged from his theological lectures at the Gregorian University in Rome during the 1950s, addressing fundamental questions about the metaphysical constitution of Christ that had puzzled theologians since the patristic era. Writing in the wake of renewed Thomistic scholarship and the growing influence of historical consciousness in Catholic theology, Lonergan sought to clarify how the hypostatic union—the doctrine that Christ possesses both divine and human natures in one person—could be understood with greater philosophical precision.
Lonergan's central argument revolves around his distinction between substantial and accidental acts of existence, proposing that Christ's human nature exists through a substantial act of existence that is simultaneously the divine act of existence of the Word. This technical but crucial insight allows him to maintain the integrity of Christ's human nature while affirming its ontological dependence on the divine person. He demonstrates how this understanding resolves classical difficulties about Christ's human consciousness and operations, showing that the human nature operates according to its own principles while being sustained in existence by the divine person. The work represents Lonergan's most systematic application of his metaphysical insights to christological problems, employing his characteristic method of moving from questions through understanding to judgment.
De Constitutione Christi has remained influential among systematic theologians for its rigorous philosophical approach to incarnational theology and its successful integration of Thomistic metaphysics with modern philosophical concerns about consciousness and personal identity. Lonergan's analysis has shaped subsequent discussions in both Catholic christology and fundamental theology, particularly regarding questions of divine and human agency in Christ.
Who should read this: Advanced students and scholars of systematic theology who possess solid grounding in Thomistic metaphysics and are prepared for technical philosophical argumentation. This work is not suitable for general readers or those seeking devotional approaches to christology, as it demands familiarity with scholastic terminology and metaphysical concepts.