Judges 3:11
And the land had rest forty years. And Othniel the son of Kenaz died.
Nave's Topical Index—AKJV

Judges 5:31
So let all your enemies perish, O LORD: but let them that love him be as the sun when he goes forth in his might. And the land had rest forty years.
Nave's Topical Index—AKJV

Judges 8:28
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.
Nave's Topical Index—AKJV