What is theology?
Theology is the study of God’s relations with humankind, God’s intervention in human affairs, and God’s Revelation of Himself, especially in the Incarnation, when the Son of God became man and entered human history as Jesus, the Christ.
God’s self-revelation was complete when the Father sent His only begotten Son into the world, because the Son of God is “the effulgence of his glory, and the very image of his substance.” (Hebrews 1:3)
Theology seeks an understanding of God’s Revelation, or as St Anselm put it, theology is “faith seeking understanding”.
The Revelation of Jesus Christ is summarised in the Apostles’ Creed, elaborated in the dogmas of the Church, and further expounded in the teachings of the Church Councils, the Fathers, Doctors, and Saints of the Church.
The word “dogma” does not mean “an obstinate insistence upon a certain point of view” (the modern day, pejorative sense of the word), but actually means a teaching that is both (1) revealed by God; and (2) defined by the Church as an integral part of God’s self-revelation.
Therefore, a “dogmatic teaching” is a teaching that is always and everywhere true, because it rests on the authority of the God who reveals Himself, and the authority of the Church which testifies to God’s self-revelation.
Some of the greatest theologians in the history of the Church include Saint Paul the Apostle, Saint John the Beloved, Saint Augustine, Saint John Chrysostom, Saint John Damascene, Saint Thomas Aquinas, and others.