Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Nehemiah 1:6

let your ear now be attentive and your eyes open, that you may listen to the prayer of your servant which I pray before you at this time, day and night, for the children of Israel your servants, while I confess the sins of the children of Israel which we have sinned against you. Yes, I and my father’s house have sinned.

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