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

2 Samuel 21:8

And the king took the two sons of Respha the daughter of Aia, whom she bore to Saul, Hermonoi and Memphibosthe, and the five sons of Michol daughter of Saul, whom she bore to Esdriel son of Berzelli the Moülathite.

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