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

1 Samuel 17:26

[and David spoke to the men who stood with him saying, Shall it indeed be done thus to the man who shall smite that Philistine, and take away reproach from Israel? for who is this uncircumcised Philistine that he has defied the army of the living God? ]

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