15 as to wise men I speak—judge ye what I say: 16 The cup of the blessing that we bless—is it not the fellowship of the blood of the Christ? the bread that we break—is it not the fellowship of the body of the Christ? 17 because one bread, one body, are we the many—for we all of the one bread do partake. 18 See Israel according to the flesh! are not those eating the sacrifices in the fellowship of the altar? 19 what then do I say? that an idol is anything? or that a sacrifice offered to an idol is anything?— 20 'no,' but that the things that the nations sacrifice—they sacrifice to demons and not to God; and I do not wish you to come into the fellowship of the demons. 21 Ye are not able the cup of the Lord to drink, and the cup of demons; ye are not able of the table of the Lord to partake, and of the table of demons; 22 do we arouse the Lord to jealousy? are we stronger than He?

Matthew Henry's Commentary on 1 Corinthians 10:15-22

Commentary on 1 Corinthians 10:15-22

(Read 1 Corinthians 10:15-22)

Did not the joining in the Lord's supper show a profession of faith in Christ crucified, and of adoring gratitude to him for his salvation ? Christians, by this ordinance, and the faith therein professed, were united as the grains of wheat in one loaf of bread, or as the members in the human body, seeing they were all united to Christ, and had fellowship with him and one another. This is confirmed from the Jewish worship and customs in sacrifice. The apostle applies this to feasting with idolaters. Eating food as part of a heathen sacrifice, was worshipping the idol to whom it was made, and having fellowship or communion with it; just as he who eats the Lord's supper, is accounted to partake in the Christian sacrifice, or as they who ate the Jewish sacrifices partook of what was offered on their altar. It was denying Christianity; for communion with Christ, and communion with devils, could never be had at once. If Christians venture into places, and join in sacrifices to the lust of the flesh, the lust of the eye, and the pride of life, they will provoke God.