was Midian

Psalm 83:9-12
Do to them as You did to Midian, as to Sisera and Jabin at the River Kishon, . . .

Isaiah 9:4
For the yoke of their burden, the bar across their shoulders, and the rod of their oppressor You have shattered as in the day of Midian.

Isaiah 10:26
And the LORD of Hosts will brandish a whip against them, as when He struck Midian at the rock of Oreb; He will raise His staff over the sea, as He did in Egypt.

forty years

Judges 3:11, 30
So the land had rest for forty years, until Othniel son of Kenaz died. . . .

Judges 5:31
So may all your enemies perish, O LORD, But may those who love You shine like the sun at its brightest. And the land had rest for forty years.