Saint Serapion of Thmuis was a Christian bishop and martyr from the 4th century, known for his strong faith and dedication to the church. He served as the bishop of Thmuis, a city in Egypt, during a time of persecution against Christians. His life is celebrated for his commitment to spreading Christianity and his efforts to support fellow believers. Serapion is often remembered for his writings, which contributed to early Christian theology. He is recognized as a saint in various Christian traditions, and his feast day is observed on October 14. His legacy continues to inspire many in the Christian faith today.