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

2 Kings 15:25

But Pekah the son of Remaliah, a captain of his, conspired against him, and smote him in Samaria, in the palace of the king’s house, with Argob and Arieh, and with him fifty men of the Gileadites: and he killed him, and reigned in his room.

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