One Bread and One Body

15 I speak as to wise men; judge ye what I say. 16 The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ? 17 For we being many are one bread, and one body: for we are all partakers of that one bread. 18 Behold Israel after the flesh: are not they which eat of the sacrifices partakers of the altar? 1 Corinthians 10:15-18