Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Jeremiah 40:9

Gedaliah the son of Ahikam the son of Shaphan swore to them and to their men, saying, “Don’t be afraid to serve the Chaldeans. Dwell in the land, and serve the king of Babylon, and it will be well with you.

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