You believe that God is one; you do well. Even the demons believe—and shudder!
“When the unclean spirit has gone out of a person, it passes through waterless places seeking rest, but finds none. Then it says, ‘I will return to my house from which I came.’ And when it comes, it finds the house empty, swept, and put in order. Then it goes and brings with it seven other spirits more evil than itself, and they enter and dwell there, and the last state of that person is worse than the first. So also will it be with this evil generation.”
2 Peter 2:4
For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment;
Submit yourselves therefore to God. Resist the devil, and he will flee from you.
1 Peter 5:8
Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour.
And he called to him his twelve disciples and gave them authority over unclean spirits, to cast them out, and to heal every disease and every affliction.
And also some women who had been healed of evil spirits and infirmities: Mary, called Magdalene, from whom seven demons had gone out,
And he said to them, “This kind cannot be driven out by anything but prayer.”
And the angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day—
1 Timothy 4:1
Now the Spirit expressly says that in later times some will depart from the faith by devoting themselves to deceitful spirits and teachings of demons,
And whenever the unclean spirits saw him, they fell down before him and cried out, “You are the Son of God.”
Then a demon-oppressed man who was blind and mute was brought to him, and he healed him, so that the man spoke and saw.
Put on the whole armor of God, that you may be able to stand against the schemes of the devil. For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places.
And behold, they cried out, “What have you to do with us, O Son of God? Have you come here to torment us before the time?”
1 Corinthians 10:21
You cannot drink the cup of the Lord and the cup of demons. You cannot partake of the table of the Lord and the table of demons.
So they shall no more sacrifice their sacrifices to goat demons, after whom they whore. This shall be a statute forever for them throughout their generations.
1 Corinthians 10:20
No, I imply that what pagans sacrifice they offer to demons and not to God. I do not want you to be participants with demons.
Then some of the itinerant Jewish exorcists undertook to invoke the name of the Lord Jesus over those who had evil spirits, saying, “I adjure you by the Jesus whom Paul proclaims.” Seven sons of a Jewish high priest named Sceva were doing this. But the evil spirit answered them, “Jesus I know, and Paul I recognize, but who are you?” And the man in whom was the evil spirit leaped on them, mastered all of them and overpowered them, so that they fled out of that house naked and wounded.
They sacrificed their sons and their daughters to the demons;
And demons also came out of many, crying, “You are the Son of God!” But he rebuked them and would not allow them to speak, because they knew that he was the Christ.
Unless otherwise noted, all Bible verses are from The Holy Bible, English Standard Version® Copyright© 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.
Special thanks to OpenBible.info for the data on the most well-known Bible verses.