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

1 Chronicles 20:5

And there [was] war again with the Philistines; and Eleanan the son of Jair smote Lachmi the brother of Goliath the Gittite, and the wood of his spear [was] as a weavers' beam.

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