1 Corinthians 10:20
On the contrary, what the heathen sacrifice they sacrifice to demons and not to God, and I do not want you to have communion with demons.
1 Corinthians 10:27-28
If one who is not a believer invites you to his house, and you wish to go, eat everything that is set before you, without asking questions for conscience sake.
2 Corinthians 6:16-17
And what compact has God's temple with idols? For we are a temple of the living God, as he has said: I will dwell among them, and walk about among them; I will be their God, and they will be my people.
Revelation 2:14
But I have a few things against you, because you have there some who hold to the teaching of Balaam, who taught Balak to put a stumbling-block before the sons of Israel, to eat food offered to idols, and to practise immorality.