Most likely the reason why God allowed the Devil to have power over the bodies of men, was to show the people the reality of a "ghostly enemy"; and to remind them, that if they allowed the Devil to get into their hearts and make them serve him, they would be unfit ever to go into the kingdom of God. The sad state in which these poor demoniacs were, was a sort of sign of the dreadful condition in which all the descendants of Adam must for ever have continued, if the Son of God had not come down to destroy the works of the Devil, and free the souls of men from his power. When Jesus cast the devils and unclean spirits out of the _bodies_ of men, it was a plain proof that His power was greater than theirs; and that he could, therefore, most certainly deliver the _souls_ of men from the power of their enemy. Evil spirits were thus allowed to show their power, in order more clearly to manifest, or show forth, the great power and glory of the Son of God, Whom even the devils were bound to obey: they were, moreover, forced to bear witness to the fact that He _was_ the Messiah, for on many occasions they cried out, "Thou art Christ, the Son of God." When we read of these unhappy men who were possessed by devils, let us remember that the same evil spirit is watching to destroy us; and that though he has now no power over the bodies of men, he tries to get possession of our hearts, and unless we resist him steadfastly, he will succeed. To encourage us to fight against the Devil, we must remember that he has no power over our souls but what we give him, by wilfully sinning against God. Powerful as our enemy is, our Friend and Saviour is vastly more powerful; and He will bless and keep all who do resist the Devil, and strive to obey and serve God faithfully. The next miracle mentioned, was the cure of a leper. Both Jews and Gentiles looked upon leprosy as a type of sin; that is, as being to the body, what sin is to the soul: the leprosy first shows itself in a little spot, but quickly spreads, and covers the whole body with sores. Sin begins in some act of disobedience; not being resisted, one sin leads to another, till the whole heart is filled with evil passions. The leper was considered unclean, and was not allowed to live amongst God's people, nor enter into the Courts of the Temple; typifying that sin is hateful in the sight of God, and that those who persist in it cannot enter into the kingdom of Heaven. The leprosy was looked upon as incurable by any human means, and therefore whenever a leper was healed, it was attributed to an especial exertion of the Divine power. In like manner, God only could take away the guilt and punishment of sin, and cleanse the heart of a sinner. The Leper, who went to Jesus beseeching Him, knew that no human skill could heal his disease; but believing Him to be the Son of God--the Messiah, he "fell on his face worshipping Him, and saying, Lord, if Thou wilt, Thou canst make me clean."