One who fails to appreciate the incalculable debt he owes to the Saviour, and who treats with indifference the ordinance appointed to keep fresh in the minds of believers the death of Christ, is guilty of disrespect toward Him. Such an attitude is akin to that of those who condemned and crucified the Lord. One who displays such an attitude at the Lord’s Supper might well be considered as rejecting his Lord, and therefore sharing in the guilt of those who put Him to death.

 That is, without due reverence for the Lord, whose suffering and sacrifice are being commemorated. The unworthiness may be said to consist either in unbecoming conduct (see v. 21) or in a lack of vital, active faith in the atoning sacrifice of Christ.

Rather, “or.”

That is, in view of what has been said concerning the purpose of the Lord’s Supper.