Could personifications of evil enter a herd of swine, or could personifications of evil make a bargain with Christ?
In the sixth chapter we are told that the disciples "cast out many devils and anointed with oil many that were sick." Here again the distinction is made between those possessed by devils and those afflicted by disease. It will not do to say that the devils were diseases or personifications.
In the seventh chapter a Greek woman whose daughter was possessed by a devil besought Christ to cast this devil out. At last Christ said: "The devil is gone out of thy daughter."
In the ninth chapter one of the multitude said unto Christ: "I have brought unto thee my son which hath a dumb spirit. I spoke unto thy disciples that they should cast him out, and they could not."
So they brought this boy before Christ, and when the boy saw him, the spirit tare him, and he fell on the ground and "wallowed, foaming."
Christ asked the father: "How long is it ago since this came unto him?" And he answered: "Of a child, and ofttimes it hath cast him into the fire and into the waters to destroy him."
Then Christ said: "Thou dumb and deaf spirit, I charge thee, come out of him, and enter no more into him."
"And the spirit cried, and rent him sore, and came out of him; and he was as one dead; insomuch that many said, 'He is dead.'"
Then the disciples asked Jesus why they could not cast them out, and Jesus said: "This kind can come forth by nothing but by prayer and fasting."
Is there any doubt about the belief of the man who wrote this account? Is there any allegory, or poetry, or myth in this story? The devil, in this case, was not an ordinary, every-day devil. He was dumb and deaf; it was no use to order him out, because he could not hear. The only way was to pray and fast.