1 Corinthians 10
16 Ref The cup of blessing which we bless, is it not a communion of the blood of Christ? The bread which we break, is it not a communion of the body of Christ?
17 Ref seeing that we, who are many, are one bread, one body: for we are all partake of the one bread.
18 Ref Behold Israel after the flesh: have not they that eat the sacrifices communion with the altar?