Thematic Bible: What cannot have communion together

Do not be unequally yoked together with unbelievers; for what fellowship does righteousness have with lawlessness? And what partnership does light have with darkness? And what agreement does Christ have with Belial? Or what part does a believer have with an unbeliever? And what agreement does a temple of God have with idols? For you are the temple of the living God, as God has said, "I will dwell in them and walk among them; and I will be their God, and they shall be My people."

But I say that the things which the nations sacrifice, they sacrifice to demons and not to God. And I do not desire that you should have fellowship with demons. You cannot drink the cup of the Lord and the cup of demons; you cannot be partakers of the Lord's table and of a table of demons.