1 Corinthians 11 v 27-29


1 Corinthians 11:27-29 
(27)  Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord. 
(28)  But let a man examine himself, and so let him eat of that bread, and drink of that cup. 
(29)  For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body. 


11:27-29. The Corinthians’ despicable behavior at the communal meal was not without result, which Paul proceeded to point out. Nowadays when this passage is read before participation in the Lord’s Supper, it is usually intended to produce soul-searching introspection and silent confession to Christ so that no one will sin against the spiritual presence of the Lord by irreverent observance. Paul’s application was probably more concrete. No doubt his experience on the Damascus Road (Acts 9:4-5) contributed to this, for the body of Christ is the church, which consists of individual believers (cf. 1 Cor. 12:12, 27). His body, the church, is also pictured by the bread of Communion (5:7; 10:16-17). Thus to sin against another believer is to sin against Christ (8:12). Those guilty of sinning against the body and blood of the Lord were those who despised a poorer member by utter disregard for his need (11:21-22). These came to the remembrance of Christ’s work of unity and reconciliation (cf. Eph. 2:15-16) with a trail of deeds that had produced disunity and alienation! If these would examine (dokimazeto, “test to approve,” 1 Cor. 11:28) themselves, they would see that they lacked God’s approval (dokimoi, v. 19) in this behavior. They should seek out the wronged brother and ask his forgiveness. Only then could a true spirit of worship flourish (cf. Matt. 5:23-24 and Didache 14. 1-3). Coming to the Lord’s Supper without that sin confessed brought judgment on the guilty participants. Only by recognizing (diakrinon, “properly judging”) the unity of the body of the Lord—and acting accordingly—could they avoid bringing “judgment” (krima) on themselves. 

Excerpt from: 
Walvoord, J. F., Zuck, R. B., & Dallas Theological Seminary. (1983-c1985). 
The Bible Knowledge Commentary : An Exposition of the Scriptures. 
Wheaton, IL: Victor Books.