St. Felix of Nola (3rd century)
Ordained by St. Maximus, Felix was imprisoned during the persecution of Decius, but was set free by an angel. Refusing the episcopacy of Nola, he continued his duties as auxiliary. He devoted himself to the poor, giving them all of his inheritance. His sufferings have merited the title of martyr.

Reflections from the Saints

Humility is the only thing that no devil can imitate. If pride made demons out of angels, there is no doubt that humility could make angels out of demons.
– St. John Climacus