Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Amos 1:11

Yahweh says: “For three transgressions of Edom, yes, for four, I will not turn away its punishment, because he pursued his brother with the sword and cast off all pity, and his anger raged continually, and he kept his wrath forever;

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