Then entered Satan into Judas surnamed Iscariot, being of the number of the twelve.
All Commentaries on Luke 22:3 Go To Luke 22
Titus of Bostra
AD 378
Satan entered into Judas not by force, but finding the door open. For forgetful of all that he had seen, Judas now turned his thoughts solely to covetousness.
And he adds, one of the twelve, since he made up the number, though he did not truly discharge the Apostolic office. Or the Evangelist adds this, as it were for contrast sake. As if he said, “He was of the first band of those who were especially chosen.”