Numbers 21:23

But Sihon would not let Israel pass through his territory. Instead, he gathered his whole army and went out to confront Israel in the wilderness. When he came to Jahaz, he fought against Israel.

Note Jahaz is a variant of Jahzah; see 1 Chronicles 6:78.

BSB · Berean Standard Bible
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.
KJV · King James Version
Sihon would not allow Israel to pass through his border, but Sihon gathered all his people together, and went out against Israel into the wilderness, and came to Jahaz. He fought against Israel.
WEB · World English Bible
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 came to Jahaz; and he fought against Israel.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

Sihon would
Deuteronomy 2:30–32; Deuteronomy 29:7, 8
Jahaz
Judges 11:20; Isaiah 15:4; Jeremiah 48:34