On one occasion there was an offering made in the mountain of Abba Anthony, and a skin of wine was there, and one of the monks took some of it in a small vessel, and with a cup in his hand he went and carried it to Abba Sisoes. And he mixed him a cupful, and he drank it, and he mixed him a second cupful, and he took it and drank it, but when he mixed him a third cupful Abba Sisoes refused to drink it, saying, “Stay thy hand, brother. Knowest thou not that the third cup is of Satan?”

Paradisus Patrum