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.
All Commentaries on Numbers 21:23 Go To Numbers 21
George Leo Haydock
Jasa was not far from the Arnon, between Medaba and Dibon, Isaias xv. 4. (Eusebius)