Leviticus 26:35-36

35As long as it lies desolate, it will have rest, the rest it did not have on your Sabbaths, while you were living on it.

36As for those who are left of you, I will bring despair (lack of courage, weakness) into their hearts in the lands of their enemies; the sound of a scattered leaf will put them to flight, and they will flee as if [running] from the sword, and will fall even when no one is chasing them.