Numbers 21:23-24

23 aBut Sihon would not allow Israel to pass through his territory. He gathered all his people together and went out against Israel to the wilderness and bcame to Jahaz and fought against Israel. 24 cAnd Israel defeated him with the edge of the sword and took possession of his land from the Arnon to the dJabbok, as far as to the Ammonites, for the border of the Ammonites was strong.
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