1 Corinthians 10:20
No, but that which the Gentiles sacrifice, they sacrifice to demons, not to God; and I would not have you have fellowship with one another through the demons.
1 Corinthians 10:27-28
If an unbeliever gives you an invitation and you are disposed to accept it, eat whatever is put before you, and ask no questions for conscience' sake.
2 Corinthians 6:16-17
And what compact has the Temple of God with idols? For *we* are the Temple of the ever-living God; as God has said, "I will dwell among them, and walk about among them; and will be their God, and it is they who shall be My people."
Revelation 2:14
Yet I have a few things against you, because you have with you some that cling to the teaching of Balaam, who taught Balak to put a stumbling-block in the way of the descendants of Israel--to eat what had been sacrificed to idols, and commit fornication.