Joshua 21:36, 37
From the tribe of Reuben they received Bezer, Jahaz, . . .

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.

Jahaz

1 Chronicles 6:78, 79
From the tribe of Reuben east of the Jordan opposite Jericho they were given Bezer in the wilderness, Jahzah, . . .

Jahzah