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

Judges 7:20

and the three companies sounded with the horns, and broke the pitchers, and held the torches in their left hands, and in their right hands their horns to sound with; and they cried out, A sword for the Lord and for Gedeon.

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