St. John Chrysostom/ቅዱስ ዮሐንስ አፈወርቅ was an important Early Church Father and Archbishop of Constantinople in the 4th and 5th centuries. He is renowned for his powerful and eloquent preaching, which earned him the epithet "Chrysostom." His sermons and theological works are widely studied and revered, and he is considered one of the Three Holy Hierarchs of the Eastern Orthodox Church, along with Basil the Great and Gregory the Theologian.