en_tq/1co/10/20.md

To whom do the gentile pagans offer their sacrifices?

They offer these things to demons and not to God.

Since Paul did not want the Corinthian believers to be participants with demons, what does he tell them they cannot do?

Paul tells them they cannot drink the cup of the Lord and the cup of demons and they cannot have fellowship at the table of the Lord and the table of demons.