They didn't understand the saying which he spoke to them.
 But this is not all the truth; for the power of Satan is active on the earth. It was then too plain, too universal, to be overlooked; and if man was so unbelieving as to the glory of Jesus, Satan at least felt the power. So it was with the man who had an unclean spirit. "He cried out with a loud voice, saying, Let us alone; what have we to do with thee, thou Jesus of Nazareth? art thou come to destroy us? I know thee who thou art, the Holy One of God." Remark here how Jesus, the fulfilment and fulfiller of God's word, accomplishes law and promise, the prophets and the Psalms. Devils own Him as the Holy One of God and again, we shall see presently, as the Anointed (Christ), the Son of God. In Luke 5:1-39 He is seen acting rather as Jehovah. "And Jesus rebuked him, saying hold thy peace, and come out of him. And when the devil had thrown him in the midst, he came out of him, and hurt him not." This proves, therefore, that there was in Christ not only grace towards man's necessities, but power over Satan. He had vanquished Satan, and proceeds to use His power in behalf of man.
