Judges 8:28

Thus was Midian subdued, before the sons of Israel, neither did they again lift up their head, - and the land had rest forty years, in the days of Gideon.

Judges 5:31

So, perish all thine enemies, O Yahweh, But be, they who love him, as the going forth of the sun, in his might! And the land had rest forty years.

Judges 3:11

And the land had rest forty years, - and Othniel son of Kenaz, died.

Judges 3:30

And Moab was subdued on that day, under the hand of Israel. And the land had rest eighty years, and Ehud judged them until his death.

Psalm 83:9-12

Make them like Midian, like Sisera, like Jabin, by the torrent of Kishon;

Isaiah 9:4

For, the yoke of their burden, The cross-bar of their shoulder, The goad of their driver, Hast thou broken, as in the day of Midian.

Isaiah 10:26

And Yahweh of hosts, will brandish over him, a scourge - Like the smiting of Midian at the rock Oreb, - And his staff being over the sea, He will lift it up in the manner of Egypt;

Treasury of Scripture Knowledge

Summary

Thus was Midian subdued before the children of Israel, so that they lifted up their heads no more. And the country was in quietness forty years in the days of Gideon.

Forty years

Bible References

Was midian

Psalm 83:9
Make them like Midian, like Sisera, like Jabin, by the torrent of Kishon;
Isaiah 9:4
For, the yoke of their burden, The cross-bar of their shoulder, The goad of their driver, Hast thou broken, as in the day of Midian.
Isaiah 10:26
And Yahweh of hosts, will brandish over him, a scourge - Like the smiting of Midian at the rock Oreb, - And his staff being over the sea, He will lift it up in the manner of Egypt;

Forty years

Judges 3:11
And the land had rest forty years, - and Othniel son of Kenaz, died.
Judges 5:31
So, perish all thine enemies, O Yahweh, But be, they who love him, as the going forth of the sun, in his might! And the land had rest forty years.