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

2 Chronicles 18:31

And it came to pass, when the captains of the chariots saw Jehoshaphat, that they said, It is the king of Israel. Therefore they compassed about him to fight: but Jehoshaphat cried out, and the Lord helped him; and God moved them to depart from him.

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