Mark 1:24

What have we to do with thee - Or, What is it to us and to thee? or, What business hast thou with us? That this is the meaning of the original, τι ἡμιν και σοι, Kypke has sufficiently shown. There is a phrase exactly like it in 2 Samuel 16:10. What have I to do with you, ye sons of Zeruiah? מה לי ולכם בני צרויה ma li v'lacem beney Tseruiah, What business have ye with me, or, Why do ye trouble me, ye sons of Tseruiah? The Septuagint translate the Hebrew just as the evangelist does here, τι εμοι και ὑμιν; it is the same idiom in both places, as there can be no doubt that the demoniac spoke in Hebrew, or in the Chaldeo-Syriac dialect of that language, which was then common in Judea. See on Matthew 8:29 (note).

Art thou come to destroy us? - We may suppose this spirit to have felt and spoken thus: "Is this the time of which it hath been predicted, that in it the Messiah should destroy all that power which we have usurped and exercised over the bodies and souls of men? Alas! it is so. I now plainly see who thou art - the Holy One of God, who art come to destroy unholiness, in which we have our residence, and through which we have our reign in the souls of men." An unholy spirit is the only place where Satan can have his full operation, and show forth the plenitude of his destroying power.

Let us alone - Though only one impure spirit is mentioned as possessing this man, yet that spirit speaks also in the name of others.

They were leagued together in the work of evil, and this one knew that if he was punished, others would also share the same fate.

What have we to do with thee? - See the notes at Matthew 8:29. By this the spirit meant to say that, if Jesus cast him out, he would use an improper interference. But this was untrue. The possession of the man was a direct assault upon God and his works. Jesus came to destroy the works of the devil, and Jesus had a right, therefore, to liberate the captive, and to punish him who had possessed him. So Satan still considers it an infringement of his rights when God frees a "sinner" from bondage and destroys his influence over the soul. So he still asks to be let alone, and to be suffered to lead people captive at his will.

Art thou come to destroy us? - Implying that this could not be the intention of the "benevolent" Messiah; that to be cast out of that man would, in fact, be his destruction, and that therefore he might be suffered still to remain. Or it may imply, as in Matthew 8:29, that the time of their destruction had not come, and that he ought not to destroy them before that.

I know thee who thou art - Evil spirits seem to have been acquainted at once with the Messiah. Besides, they had learned from his miracles that he was the Messiah, and had power over them.

The Holy One of God - The Messiah. See Daniel 9:24. Jesus is called "the Holy One of God" because:

1. Jesus was eminently pure.

2. Because Jesus was the only begotten Son of God - equal with the Father. And,

3. Because Jesus was anointed (set apart) to the work of the Messiah, the mediator between God and man.