1st Corinthians 10:17

14 Therefore, my beloved, flee from idolatry.

15 I speak as to wise men. Judge what I say.

16 The cup of blessing which we bless, isn`t it a communion of the blood of Christ? The bread which we break, isn`t it a communion of the body of Christ?

17 Seeing that we, who are many, are one bread, one body; for we all partake of the one bread.

18 Consider Israel after the flesh. Don`t those who eat the sacrifices have communion with the altar?

19 What am I saying then? That a thing sacrificed to idols is anything, or that an idol is anything?

20 But I say that the things which the Gentiles sacrifice, they sacrifice to demons, and not to God, and I don`t desire that you would have communion with demons.