Cross reference
Judges 3:30
30 So Moab was subdued that day under the hand of Israel. And the land had rest fourscore years.
Judges 3:11
11 And the land had rest forty years. And Othniel the son of Kenaz died.
Judges 5:31
31 So let all thine enemies perish, O Jehovah: But let them that love him be as the sun when he goeth forth in his might. And the land had rest forty years.