Leviticus 26:33-35

³³I will enable your enemies to kill you with their swords, and I will cause the rest of you to be scattered among other nations. Your country will be ruined and your cities will become ruins.

³⁴After that happens, as long as you are living in your enemies' countries, your land will be allowed to rest, like you should have allowed it to rest every seven years.

³⁵All the time that your land is desolate, it will be able to rest, like you did not enable it to rest during all the years that you lived there.