By the time of the Judges, the Midianites, led by two princes Oreb (Hebrew: עֹרֵב, Orev) and Zeeb (Hebrew: זְאֵב, Z'ev) were raiding Israel with the use of swift camels, until they were decisively defeated by Gideon. Oreb was slain along with Zeeb (Judges 7:20-25). Many of the Midianites perished along with him (Psalm 83:12; Isaiah 10:26).
The place where Gideon slew Oreb after the defeat of the Midianites was called the Rock of Oreb. It was probably the place now called Orbo, on the east of Jordan, near Bethshean.