Orthodox theology is something that people in the Eastern parts of the world believe in. It has a long and complicated history that goes back a long time.
A long, long time ago, many people believed in God and they wanted to figure out more about Him. They talked and wrote a lot about what God was like, what He wanted us to do, and how we could be closer to Him. Over time, some people came up with different ideas about God and how we should follow Him.
Eventually, there were two big groups of people with different ideas. One group lived in the Western parts of the world and the other in the Eastern parts of the world. The group in the East became known as the Orthodox Christians, and they had their own way of thinking about God.
Orthodox Christians wrote books and talked about God a lot. They thought that God was three people in one: the Father, the Son, and the Holy Spirit. They believed that God became a human named Jesus Christ so that He could be closer to us and teach us more about Him. They also believed in icons, which are religious paintings that help people think about God.
Orthodox theology has changed and developed over many years, and there are many different people who have contributed to its history. But even today, many Eastern Orthodox Christians believe in the same things that their ancestors did a long, long time ago.