Lev 25:9-10

9Then you shall have the trumpet sounded loud; on the tenth day of the seventh month—on the day of atonement—you shall have the trumpet sounded throughout all your land.10And you shall hallow the fiftieth year and you shall proclaim liberty throughout the land to all its inhabitants. It shall be a jubilee for you: you shall return, every one of you, to your property and every one of you to your family.