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

Zechariah 7:5

Speak to the whole people of the land, and to the priests, saying, Though you⌃ fasted or lamented in the fifth or seventh [months] (yes, behold, these seventy years) have you⌃ at all fasted to me?

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