Daniel L. Migliore, Faith Seeking Understanding, 294-5. Emphasis mine.
The Lord’s Supper is therefore also the sacrament of human participation in the divine life by sharing life with each other. As a public, open, joyful, hopeful meal, the Lord’s Supper is a foretaste of a new humanity. Christians cannot eat and drink at the table—where all are welcome and none goes hungry or thirsty—and continue to condone any form of discrimination or any social or economic policy that results in hunger or other forms of deprivation. The Lord’s Supper is the practice of “eucharistic hospitality,” in which strangers are welcomed into the household of God. Christians cannot share this bread and wine while refusing to share their daily bread and wine with the millions of hungry people around the world. There is an intrinsic connection between responsible participation in the Lord’s Supper and commitment to a fairer distribution of the goods of the earth to all its people.When one remembers this (or makes the connection for the first time), one is rudely shoved toward the conclusion that thousands (tens of thousands? hundreds of thousands?) in the United States who consider themselves to be devoted Christians in fact "eateth and drinketh damnation" to themselves insofar as they fail to "discern" Christ's body. . . .
It never hurts to read 1 Corinthians 11.23-29 and Matthew 25.31-46 together.