This document introduces patrology, defined as the study of the Church Fathers, emphasizing the importance of understanding their lives and writings within their historical context. It outlines the necessary qualifications for being considered a Church Father, such as orthodoxy, holiness, church acceptance, and antiquity, and categorizes various types of Church Fathers, including apostles, apologists, and ecumenical teachers. The text also discusses how to approach their writings thoughtfully, advocating for a comprehensive understanding that respects biblical and church traditions.