Saint Athanasius the Great
He is the twentieth Patriarch (Pope) [1] of the See of Alexandria. He is known as the “Protector of the Faith” and the “Father of Orthodoxy,” and he is one of the fathers who defend true and authentic surrender. […]
Patristic teaching on the mystery of the Trinity
The mystery of the Holy Trinity, which the Church believes in, was neither the product of human thought nor the result of external religious or philosophical influences.