Judges 8:28

So Mid'ian was subdued before the people of Israel, and they lifted up their heads no more. And the land had rest forty years in the days of Gideon.

Judges 5:31

"So perish all thine enemies, O LORD! But thy friends be like the sun as he rises in his might." And the land had rest for forty years.

Judges 3:11

So the land had rest forty years. Then Oth'ni-el the son of Kenaz died.

Judges 3:30

So Moab was subdued that day under the hand of Israel. And the land had rest for eighty years.

Psalm 83:9-12

Do unto them as to Midian; as to Sisera, as to Jabin, at the torrent of Kishon:

Isaiah 9:4

For thou hast broken the yoke of his burden and the staff of his shoulder, the rod of his oppressor, as in the day of Midian.

Isaiah 10:26

And Jehovah of hosts will stir up a scourge against him, according to the slaughter of Midian at the rock of Oreb; and his rod shall be upon the sea, and he will lift it up after 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
Do unto them as to Midian; as to Sisera, as to Jabin, at the torrent of Kishon:
Isaiah 9:4
For thou hast broken the yoke of his burden and the staff of his shoulder, the rod of his oppressor, as in the day of Midian.
Isaiah 10:26
And Jehovah of hosts will stir up a scourge against him, according to the slaughter of Midian at the rock of Oreb; and his rod shall be upon the sea, and he will lift it up after the manner of Egypt.

Forty years

Judges 3:11
So the land had rest forty years. Then Oth'ni-el the son of Kenaz died.
Judges 5:31
"So perish all thine enemies, O LORD! But thy friends be like the sun as he rises in his might." And the land had rest for forty years.