Leviticus 25:8-11

⁸You must count off seven Sabbaths of years, that is, seven times seven years, so that there will be seven Sabbaths of years, totaling forty-nine years.

⁹Then you must blow a loud trumpet everywhere on the tenth day of the seventh month. On the Day of Atonement you must blow a trumpet throughout all your land.

¹⁰You must set apart the fiftieth year to Yahweh and proclaim liberty throughout the land to all its inhabitants. It will be a Jubilee for you, in which property and slaves must be returned to their families.

¹¹The fiftieth year will be a Jubilee for you. You must not plant or conduct an organized harvest. Eat whatever grows by itself, and gather the grapes that grow on the unpruned vines.