1 Corinthians 8:4
concerning, therefore, the eating of things sacrificed to idols, we know that an idol is nothing in the world, and that there is no God but One.
1 Corinthians 10:19-20
What, then, do I say? that an idol-sacrifice is anything? or that an idol is anything?
1 Timothy 4:1
But the Spirit expressly saith, that in later times, some will fall away from the faith, giving heed to seducing spirits, and to teachings of demons,
Revelation 9:20
And the rest of the men, who were not killed with these plagues, repented not of the works of their hands, that they should not worship the demons, and the idols of gold, and of silver, and of brass, and of stone, and of wood; which can neither see, nor hear, nor walk;