1 Corinthians 10:16

16Theτὸcupποτήριοντῆςof blessingεὐλογίαςthatὃwe blessεὐλογοῦμεν,notοὐχὶa participationκοινωνίαis itἐστὶνin theτοῦbloodαἵματοςτοῦof ChristΧριστοῦ;Theτὸνbreadἄρτονthatὃνwe breakκλῶμεν,notοὐχὶa participationκοινωνίαin theτοῦbodyσώματοςτοῦof ChristΧριστοῦis itἐστιν;

The cup of blessing that we bless, is [it] not a fellowship of the blood of Christ? The bread that we break, is [it] not a fellowship of the body of Christ?