Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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2 Samuel 4:8

They brought the head of Ishbosheth to David to Hebron, and said to the king, “Behold, the head of Ishbosheth, the son of Saul, your enemy, who sought your life! Yahweh has avenged my lord the king today of Saul and of his offspring.”

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