Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
WEB

1 Corinthians 11:20

When therefore you assemble yourselves together, it is not the Lord’s supper that you eat.

Parallel Translations

KJVView canonical →
When ye come together therefore into one place, this is not to eat the Lord’s supper.
King James Version