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

2 Esdras 2:38

Arise up and stand, behold the number of those that be sealed in the feast of the Lord;

Parallel Translations

WEBView canonical →
Arise and stand up, and see the number of those who have been sealed at the Lord’s feast.
World English Bible
GNV1560View canonical →
Arise,and stand vp , and beholde the nomber of those that are sealed for the feast of the Lord,
Geneva Bible (1560) Apocrypha