'Forty Years' in the Bible

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

So, perish all thine enemies LORD: but they that love thee, let them be as the sun rising in his might!" And the land had rest forty years.

Thus were the Midianites brought low before the children of Israel, so that they lift up their heads no more. And the country was in quietness forty years in the days of Gideon.

And the children of Israel began again to commit wickedness in the sight of the LORD. And the LORD delivered them into the hands of the Philistines forty years.