Our blessing cup

I speak as to sensible people; judge for yourselves what I say. The cup of blessing that we bless, is it not a sharing in the blood of Christ? The bread that we break, is it not a sharing in the body of Christ? Because there is one bread, we who are many are one body, for we all partake of the one bread. Consider the people of Israel; are not those who eat the sacrifices partners in the altar? What do I imply then? That food sacrificed to idols is anything, or that an idol is anything? No, I imply that what pagans sacrifice, they sacrifice to demons and not to God. I do not want you to be partners with demons. You cannot drink the cup of the Lord and the cup of demons. You cannot partake of the table of the Lord and the table of demons. Or are we provoking the Lord to jealousy? Are we stronger than he?