1 Corinthians 10:21, Dining at the Table of Demons
You cannot drink the cup of the Lord and the cup of demons too; you cannot have a part in both the Lord’s table and the table of demons.
//If you want to stay on Paul’s good side, stay away from food that was offered to pagan deities. This was a common practice in antiquity; meat would be offered as a sacrifice to the gods, and then retrieved and eaten. If you read my book about Revelation you are familiar with this practice. In fact, Revelation explicitly condemns one church for doing this:
Nevertheless, I have a few things against you: There are some among you who hold to the teaching of Balaam, who taught Balak to entice the Israelites to sin so that they ate food sacrificed to idols and committed sexual immorality. –Revelation 2:14
So strongly does Paul condemn this practice that he says anyone who eats sacrificial food is eating at a table with demons.