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

Jeremiah 6:26

O daughter of my people, gird thyself with sackcloth: sprinkle [thyself] with ashes; make for thyself pitiable lamentation, [as] the mourning for a beloved [son]: for misery will come suddenly upon you.

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