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 10:20

Nay, but I say that the things which the gentiles sacrifice, they sacrifice to demons, and not to God; and I do not wish you to become partakers with the demons.

Treasury of Scripture Knowledge

Summary

Wherefore the anger of the LORD was kindled against Amaziah, and he sent unto him a prophet, which said unto him, Why hast thou sought after the gods of the people, which could not deliver their own people out of thine hand?

Bible References

Which could

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 10:20
Nay, but I say that the things which the gentiles sacrifice, they sacrifice to demons, and not to God; and I do not wish you to become partakers with the demons.