5 Bible Verses about Demons, Nature Of

The seventy returned with joy, saying, “Lord, even the demons are subject to us in Your name.” He said to them, “I watched Satan fall from heaven like [a flash of] lightning.

Now He was [already] commanding the unclean spirit to come out of the man. For it had seized him [violently] many times; and he was kept under guard and bound with chains and shackles, but he would break the bonds and be driven by the demon into the desert.

For Jesus had been saying to him, “Come out of the man, you unclean spirit!” He was asking him, “What is your name?” And he replied, “My name is Legion; for we are many.”

Jesus summoned His twelve disciples and gave them authority and power over unclean spirits, to cast them out, and to heal every kind of disease and every kind of sickness.

But the Pharisees heard it and said, “This man casts out demons only by [the help of] Beelzebul (Satan) the prince of the demons.” Knowing their thoughts Jesus said to them, “Any kingdom that is divided against itself is being laid waste; and no city or house divided against itself will [continue to] stand. If Satan casts out Satan [that is, his demons], he has become divided against himself and disunited; how then will his kingdom stand? read more.
If I cast out the demons by [the help of] Beelzebul (Satan), by whom do your sons drive them out? For this reason they will be your judges. But if it is by the Spirit of God that I cast out the demons, then the kingdom of God has come upon you [before you expected it]. Or how can anyone go into a strong man’s house and steal his property unless he first overpowers and ties up the strong man? Then he will ransack and rob his house. He who is not with Me [once and for all on My side] is against Me; and he who does not [unequivocally] gather with Me scatters.