1 Corinthians 10:16-18
16 The cup of blessing which we bless, is it not [the] communion of the blood of the Christ? The bread which we break, is it not [the] communion of the body of the Christ?
17 Because we, [being] many, are one loaf, one body; for we all partake of that one loaf.
18 See Israel according to flesh: are not they who eat the sacrifices in communion with the altar?Read full chapter