Reference: Daemon
Easton
the Greek form, rendered "devil" in the Authorized Version of the New Testament. Daemons are spoken of as spiritual beings (Mt 8:16; 10:1; 12:43-45) at enmity with God, and as having a certain power over man (Jas 2:19; Re 16:14). They recognize our Lord as the Son of God (Mt 8:20; Lu 4:41). They belong to the number of those angels that "kept not their first estate," "unclean spirits," "fallen angels," the angels of the devil (Mt 25:41; Re 12:7-9). They are the "principalities and powers" against which we must "wrestle" (Eph 6:12).
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When evening had come, they brought to Him many who were under the power of demons, and at a mere word He drove the spirits out, and cured all who were sick,
And Jesus said to him, "Foxes have holes, even wild birds have roosts, but the Son of Man has nowhere to lay His head."
Then He called His twelve disciples to Him, and gave them authority over foul spirits, so that they could drive them out, and so that they could cure any disease or ailment.
"Whenever the foul spirit goes out of a man, it wanders about in deserts in search of rest, but cannot find it. Then it says, 'I will go back to my house which I left,' and it finds it unoccupied, swept, and ready for use. read more. "Then it goes and gets seven other spirits more wicked than itself, and they go in and make their home there, and so the end of that man is worse than the beginning. This is the way it will be with the wicked leaders of this age."
"Then He will say to those at His left, 'Be gone from me, you who are now cursed, to the everlasting fire prepared for the devil and his angels.
Even demons came out of many people, shrieking and saying, "You are the Son of God!" But He reproved them and would not let them speak, because they knew that He was the Christ.
For our contest is not with human foes alone, but with the rulers, authorities, and cosmic powers of this dark world; that is, with the spirit-forces of evil challenging us in the heavenly contest.
Do you believe in one God? Very well; the demons, too, believe that, and shudder.
Then war broke out in heaven: Michael and his angels going to war with the dragon. The dragon and his angels fought, but they were defeated, and there was no room for them in heaven any longer. read more. So the huge dragon, the ancient serpent, called the devil and Satan, who deceives the whole world, was hurled down to the earth, and his angels were hurled down with him.
They are the spirits of demons that perform wonders, and they go forth to the kings of the whole world, to muster them for battle on the great day of the Almighty God.