1 Corinthians 10:14-21
Idol Feasts and the Lord’s Supper
Therefore, my dear friends, flee from idolatry. I speak to sensible people; judge for yourselves what I say. Is not the cup of thanksgiving for which we give thanks a participation in the blood of Christ? And is not the bread that we break a participation in the body of Christ? Because there is one loaf, we, who are many, are one body, for we all share the one loaf.
Consider the people of Israel: Do not those who eat the sacrifices participate in the altar? Do I mean then that food sacrificed to an idol is anything, or that an idol is anything? No, but the sacrifices of pagans are offered to demons, not to God, and I do not want you to be participants with 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.