'Forty Years' in the Bible

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

So let all Your enemies perish, O Jehovah. But let them that love Him be like the sun when he goes forth in his might. And the land had rest forty years.

And Midian was subdued before the sons of Israel, so that they lifted up their heads no more. And the land had rest forty years in the days of Gideon.

And the sons of Israel did evil again in the sight of Jehovah. And Jehovah delivered them into the hands of the Philistines forty years.