Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX2012

Psalms 134:8

Who struck the firstborn of Egypt, both of man and beast.

Parallel Translations

LXXView canonical →
Who smote the first-born of Egypt, both of man and beast.
Brenton's Septuagint Translation