Charles Ellicott Commentary 1 Corinthians 11:21

"for in your eating each one taketh before [other] his own supper; and one is hungry, and another is drunken." — 1 Corinthians 11:21 (ASV)

For. What follows is a description of the conduct and manner of proceeding at this feast, which renders it impossible, as stated in 1 Corinthians 11:20, for it to be a Lord’s Supper. Everyone greedily seizes (takes before distribution is made) what they have brought with them, and appropriates it to their own individual use, instead of making it a contribution to the general and common supply. Everyone comes to eat his own supper, and not the Lord’s Supper. And the result is that while some poor person, who has not been able to bring enough for themselves, remains unfed, some rich person, drinking the wine they brought, and which they have not shared with others, is drunken. (See Note on 1 Corinthians 11:34.)