Commentaries
11:17-22 The apostle rebukes the disorders in their partaking of the Lord's supper. The ordinances of Christ, if they do not make us better, will be apt to make us worse. If the use of them does not mend, it will harden. Upon coming together, they fell into divisions, schisms. Christians may separate from each other's communion, yet be charitable one towards another; they may continue in the same communion, yet be uncharitable. This last is schism, rather than the former. There is a careless and irregular eating of the Lord's supper, which adds to guilt. Many rich Corinthians seem to have acted very wrong at the Lord's table, or at the love-feasts, which took place at the same time as the supper. The rich despised the poor, and ate and drank up the provisions they brought, before the poor were allowed to partake; thus some wanted, while others had more than enough. What should have been a bond of mutual love and affection, was made an instrument of discord and disunion. We should be careful that nothing in our behaviour at the Lord's table, appears to make light of that sacred institution. The Lord's supper is not now made an occasion for gluttony or revelling, but is it not often made the support of self-righteous pride, or a cloak for hypocrisy? Let us never rest in the outward forms of worship; but look to our hearts.
19. heresies—Not merely "schisms" or "divisions" (1Co 11:18), which are "recent dissensions of the congregation through differences of opinion" [Augustine, Con. Crescon. Don. 2.7, quoted by Trench, Greek Synonyms of the New Testament], but also "heresies," that is, "schisms which have now become inveterate"; "Sects" [Campbell, vol. 2, pp. 126, 127]: so Ac 5:17; 15:5 translate the same Greek. At present there were dissensions at the love-feasts; but Paul, remembering Jesus' words (Mt 18:7; 24:10, 12; Lu 17:1) foresees "there must be (come) also" matured separations, and established parties in secession, as separatists. The "must be" arises from sin in professors necessarily bearing its natural fruits: these are overruled by God to the probation of character of both the godly and the ungodly, and to the discipline of the former for glory. "Heresies" had not yet its technical sense ecclesiastically, referring to doctrinal errors: it means confirmed schisms. St. Augustine's rule is a golden rule as regards questions of heresy and catholicity: "In doubtful questions, liberty; in essentials, unity; in all things, charity."
that … approved may be made manifest—through the disapproved (reprobates) becoming manifested (Lu 2:35; 1Jo 2:19).