Our Holy Father Sennuphius the Standard-Bearer (4th c.)

"A great ascetic and wonderworker of the Egyptian desert, he was a contemporary of Patriarch Theophilus and the Emperor Theodosius the Great. He is called 'the Standard-Bearer' because he once helped the Emperor Theodosius to gain a victory over enemy forces by his prayers. When the Emperor summoned him to Constantinople, he replied that he was unable to go, but sent his torn and patched monastic habit and his staff. Going out to battle, the Emperor put on Sennuphius's habit and carried his staff in his hand, and returned victorious from the battle." (Prologue)