Charles Ellicott Commentary 1 Corinthians 11:30

"For this cause many among you are weak and sickly, and not a few sleep." — 1 Corinthians 11:30 (ASV)

For this cause—that is, because you do not regard these feasts, to which the Lord’s Supper is joined, as gatherings in a common body, but eat and drink to excess, and so gain no spiritual advantage, but actually physical evil, many are weak and sickly.

And many sleep.—Better, and some die. Even death sometimes resulted from their drunken orgies, either naturally, or by God’s direct visitation.