A Ninth Century Rebuke of "Extraterresterial Beings" by Bishop Agobard of Lyon

In the early ninth century, a group of three men and one woman were reported to have come down from “aerial ships” to the city of Lyon. The mob that gathered accused the visitors of being evil magicians who wanted to ruin their crops. But the visitors insisted that they were ordinary, peaceful people from the same country who had been abducted by magical men and taken to a place in the sky called Magonia. Before the mob became violent, Bishop Agobard of Lyon (June 6) came running to the scene. He dismissed the story of the visitors as complete fantasy. Since Agobard was a greatly respected man, the townspeople accepted his skepticism and the strangers were left unharmed.

A Conversation on Psychiatric Illnesses and Demonic Possession with Elder Epiphanios Theodoropoulos

Elder Epiphanios was asked:

"Many Christians maintain that psychiatric illnesses are due to demonic influence and, with this viewpoint, they reject the use of psychiatric medicines. What do you have to say about this position?"

The Holy Elder That Invited a Demon To Possess Him

By the Preacher Demetrios Panagopoulos

A demon possessed man suffered for man years because of this demon. The fathers of a certain monastery had brought him to many elders to be healed, but no one was able to exorcise the demon. Eventually they brought him to a clairvoyant elder, who was a great faster. The elder said to them:

"Brothers and Fathers, I do not have the gift to expel demons. But I do have love and I ask the demon to leave this man and to come to me, so this brother can find some rest."

The Antidote to Demonic Possession

By St. Theophan the Recluse

"This kind goeth not out but by prayer and fasting" (Matt. 17:21). If this kind goes out by the prayer and fasting of another person, then it is even less able to enter one who fasts and prays. What protection! Although there are a slew of demons and all the air is packed with them, they cannot do anything to one who is protected by prayer and fasting. Fasting is universal temperance, prayer is universal communication with God; the former defends from the outside, whereas the latter from within directs a fiery weapon against the enemies. The demons can sense a faster and man of prayer from a distance, and they run far away from him so as avoid a painful blow. Is it feasible to think that where there is no fasting and prayer, there already is a demon? Yes, it is. The demons lodging in a person, do not always reveal their presence, but lurk there, stealthily teaching their host every evil and turning him away from every good thing; so this person is certain that he is doing everything on his own, but meanwhile he is only fulfilling the will of his enemy. Just commence prayer and fasting and the enemy will immediately depart, then wait on the side for an opportunity to somehow return again. And he truly will return, as soon as prayer and fasting are abandoned.