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

2 Chronicles 20:9

If there should come upon us evils, sword, judgment, pestilence, famine, we will stand before this house, and before thee, (for thy name [is] upon this house,) and we will cry to thee because of the affliction, and thou shalt hear, and deliver.

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