Breadcrumb Home Theology THEO 3331 THEO 3331: Catholic Church: Origin, Structure, and Mission Class Program Theology Credits 3 Course ID 001760 Grading Basis Graded Course Component Lecture Reflection in light of scripture and Vatican II on the Catholic Church as one, holy, catholic and apostolic; discussion of authority and the papacy; ecumenism; the laity; the role of the Church in the modern world. Requisites Completion of THEO 1301 or 3301 and THEO 2301 or 3311 and taken along with or after completing THEO 3349.