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

Zechariah 13:7

Awake, O sword, against my shepherds, and against the man [who is] my citizen, saith the Lord Almighty: smite the shepherds, and draw out the sheep: and I will bring mine hand upon the little ones.

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