A man who was possessed by the demon came to the skete once and they prayed for him in church, but the demon wouldn’t come out, for it was a powerful one. And the clergy said: “What shall we do about this demon? Nobody can take him out, save for Abba Visarion. But if we ask him to do that, he won’t even show up in church. So let us do this: since the Abba comes in earlier than everyone else, let us ask the demonised man to sit on Abba’s place and when the Elder comes in, let us sit as if we are about to start our prayers and ask him: Wake up that brother, too, Abba!”
And they did so. When the Elder entered the church the following morning, they sat to pray and told him: “Abba, please be kind and wake up that brother, too.” And Abba Visarion turned and said to the man: “Wake up, get out!” and the demon left the man straight away, leaving him healed.
Apophtegm by the Holy Fathers of the Desert