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

Jeremiah 42:2

And said unto Jeremiah the prophet, Let, we beseech thee, our supplication be accepted before thee, and pray for us unto the Lord thy God, even for all this remnant; (for we are left but a few of many, as thine eyes do behold us:)

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