1 Corinthians 10:16

The cup of blessing which we bless [Not the cup which brings blessing (though it does that), but the cup over which blessing is spoken, the cup consecrated by benediction. Wine becomes a symbol of the blood of Christ by such a consecration, and even ordinary food is sanctified by prayer (1 Timothy 4:4-5. Compare Matthew 26:26; Luke 9:16). But the plural "we" used in this paragraph shows that the blessing and breaking were not the acts of the minister exercising priestly functions, but were the acts of the whole congregation through the minister as their representative. Sacerdotal consecration of the elements is not found here nor anywhere else in the New Testament], is it not a communion of [a participation in or common ownership of] the blood of Christ? The bread which we break, is it not a communion of the body of Christ? [See John 6:41-59]