In the central act of Holy Communion, Christians enjoy fellowship with the Lord Jesus Christ and with one another: “Because there is one bread, we, though many, are one body, for we all partake of the one bread.” (v.17). The same principle applies to those who sacrifice to demons and then eat the sacrificed meat together – they fellowship with the demons. So, says Paul: you cannot partake at the Lord’s table and at the table of demons. Paul therefore desperately urges the people to “flee idolatry” and have absolutely nothing to do with such practices. Compromise here is a very real danger as it opens the door to all kinds of evil and of spiritual counterfeit.
It may be true that “all things are lawful” or “we are free to do anything” (v.23), but Paul urges everyone to take into account both the overall good of the Christian community and the best interests of each individual fellow-Christian. At all times, everyone should ask themselves the simple question: Am I building up the Body of Christ by what I am doing?