This course is an introduction to a Catholic understanding of the life of the Patristic Church. It focuses on the teachings of the Fathers on the Church life and the development of ecclesiology. It presents the major themes of ecclesiology, including the development of the Church's doctrine on the Church from Scripture and the Patristics. This course will draw from the student's other knowledge, especially Scripture, revelation and Church history. The goal of this course is to serve as an opportunity for the student to investigate into the Patristic source of ecclesiology, which is one of the fundamental foundations for the study of the Church.