And Sihon would not allow Israel to pass through his territory: but Sihon gathered all his people together, and went out against Israel into the wilderness: and he came to Jahaz, and fought against Israel.
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George Leo Haydock
AD 1849
Jasa was not far from the Arnon, between Medaba and Dibon, Isaias xv. 4. (Eusebius)