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

Deuteronomy 33:29

Blessed [art] thou, O Israel; who [is] like to thee, O people saved by the Lord? thy helper shall hold his shield over thee, and [his] sword [is] thy boast; and thine enemies shall speak falsely to thee, and thou shalt tread upon their neck.

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