Leviticus 25:8-12

You shall count off seven weeks of years, seven times seven years, so that the period of seven weeks of years gives forty-nine years. Then 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. And 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. That fiftieth year shall be a jubilee for you: you shall not sow, or reap the aftergrowth, or harvest the unpruned vines. For it is a jubilee; it shall be holy to you: you shall eat only what the field itself produces.