But Sihon would not allow Israel to pass through his border. Instead Sihon gathered all his people together and went out against Israel into the wilderness, and came to Jahaz, and he fought against Israel.

“Then at Jahaz, Sihon and all his people came out to meet us in battle.

and Jahaz and Kedemoth and Mephaath,

From the tribe of Reuben, they gave Bezer with its pasture lands and Jahaz with its pasture lands,

But Sihon did not trust Israel to pass through his territory; so Sihon gathered together all his people and camped at Jahaz and fought against Israel.

Heshbon and Elealeh [cities claimed by Moab] cry out;
Their voice is heard as far as Jahaz.
Therefore the armed men of Moab cry out;
Moab’s soul trembles within him.

From the outcry at Heshbon even to Elealeh, even to Jahaz they have raised their voice, from Zoar even to Horonaim and Eglath-shelishiyah; for even the waters of Nimrim will become desolations.