1 Corinthians 8:4
As to eating things, then, that have been offered to idols, we all know that no idol has any real existence, and that there is no God but one.
1 Corinthians 10:19-20
What am I saying then? That there is any such thing as being offered to an idol, or any such thing as an idol?
1 Timothy 4:1
The Spirit distinctly says that in later times some will turn away from the faith, and devote their attention to deceitful spirits and the things that demons teach
Revelation 9:20
Yet what was left of mankind, those who escaped being killed by these plagues, did not repent of the works of their hands and give up worshiping demons and gold, silver, bronze, stone, and wooden idols, which cannot either see or hear or move,