Thematic Bible: What cannot have communion together

Be not unequally yoked together with unbelievers: for what participation is there to righteousness and unrighteousness? or what fellowship has light unto darkness? What concord of Christ unto Belial? or what part has a faithful man with an infidel? And what harmony has the temple of God with idols? for we are the temple of the living God; as God said; I will live in them, and walk about among them; and I will be their God, and they shall be my people.

But those things which they sacrifice, they sacrifice to demons, and not to God. But I do not wish you to be the communicants of demons. You are not able to drink the cup of the Lord, and the cup of demons: you are not able to partake of the table of the Lord, and the table of demons.