ANSWER: This theory implies the following difficulties: That Christ knowingly chose a devil, thus setting an example to his church to license bad men to preach; that Christ commissioned a devil to work miracles, even to raise the dead and to cast out devils, thus justifying the charge of his enemies that he cast out devils through a devil (Matt. 10:2-9). We should note that Jesus, speaking three years after the call of Judas, did not say he was a devil from the beginning, but is a devil now. A good man may backslide very far in three years. There was evidently a growth in badness in John 6:70, where he intimates that Judas is under the influence of the devil, just as he means that Peter is influenced by Satan when he calls him Satan (Matt. 16; 23). The growth of the spirit of greed six months afterwards reached its climax, in John 13:26, 27.
— Steele's Answers pp. 190, 191.