Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
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Numbers 21:34

Yahweh said to Moses, “Don’t fear him, for I have delivered him into your hand, with all his people, and his land. You shall do to him as you did to Sihon king of the Amorites, who lived at Heshbon.”

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