" Notice the integral union of the sign and the thing signified: To sin against the bread and cup is to sin against the body and the blood. In order for that statement to hold up syntactically, one cannot simply dissolve the sign into the thing signified (as in the Roman Catholic view), for they are clearly distinct in Paul’s mind: The bread and wine are one thing, the body and blood are something else. Nevertheless, they are not separated (as in the memorialist view) but are bound by Word and Spirit, so that the physical eating of the bread and wine in an unworthy manner constitutes the eating and drinking of God’s wrath for “not discerning the Lord’s body” (v. 29). "

― Michael S. Horton , A Better Way: Rediscovering the Drama of God-Centered Worship