Numbers 21:23
And Sihon would not suffer Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness: and he came to Jahaz, and fought against Israel.
Nave's Topical Index—AKJV

Deuteronomy 2:32
Then Sihon came out against us, he and all his people, to fight at Jahaz.
Nave's Topical Index—AKJV

Judges 11:20
But Sihon trusted not Israel to pass through his coast: but Sihon gathered all his people together, and pitched in Jahaz, and fought against Israel.
Nave's Topical Index—AKJV