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

2 Samuel 20:21

Is not the case thus, that a man of mount Ephraim, Sabee son of Bochori by name, has even lifted up his hand against king David? Give him only to me, and I will depart from the city. And the woman said to Joab, Behold, his head shall be thrown to thee over the wall.

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