1 Corinthians 10:20-21

But I say, that the things which the Gen tiles sacrifice, they sacrifice to demons, and not to God. I do not wish you to be partakers with demons.

1 Timothy 4:1

Now the Spirit says expressly, that, in the last times, some shall depart from the faith, giving heed to seducing spirits, and teachings suggested by demons,

Revelation 16:14

For they are the spirits of demons that do signs, and they go forth to the kings of the whole world, to bring them together to the battle of that great day of God Almighty.

Treasury of Scripture Knowledge

Summary

And he ordained him priests for the high places, and for the devils, and for the calves which he had made.

Bible References

For the devils

1 Corinthians 10:20
But I say, that the things which the Gen tiles sacrifice, they sacrifice to demons, and not to God. I do not wish you to be partakers with demons.
1 Timothy 4:1
Now the Spirit says expressly, that, in the last times, some shall depart from the faith, giving heed to seducing spirits, and teachings suggested by demons,
Revelation 16:14
For they are the spirits of demons that do signs, and they go forth to the kings of the whole world, to bring them together to the battle of that great day of God Almighty.