Mark 5:7

And crying out with a loud voice, he saith, What have I to do with thee, Jesus, thou Son of the Most High God? I adjure thee by God, torment me not.

Son of God Most High ... This name of God Most High is very ancient, appearing in connection with Melchizedek (Genesis 14:18), Balaam (Numbers 24:16), and in the Song of Moses (Deuteronomy 32:8). The Hebrews did not invent or evolve monotheism, that being the original view of the Father, even prior to Abraham.

I adjure thee by God, torment me not ... This petition of the demon seems here to have been predicated upon God's prior promise that the demonic world would be vanquished at some time certain in the future, hence his invoking God's name in the request. "Art thou come hither to torment us before the time?" as in Matthew, carries the same implication. It will be noted that Matthew mentioned two men in this connection; but Mark and Luke restricted their accounts to the more ferocious and prominent of the two. A glimpse of God's ultimate plan of destroying evil surfaces here in the demonic knowledge that such a destruction is in store for them and that an appointed time for it has already been determined. See Acts 17:31, also Zechariah 13:1,2.