1 Corinthians 10:16-18

JPS_ASV_Byz(i) 16 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 seeing that we, who are many, are one bread, one body; for we are all partake of the one bread. 18 Behold Israel after the flesh; have not they that eat the sacrifices communion with the altar?