In the twenty-fifth chapter of Leviticus is found God’s giving of the Jubilee to the nation of Israel.
“And thou shalt number seven Sabbaths of years unto thee, seven times seven years; and the space of the seven Sabbaths of years shall be unto thee forty and nine years. Then shalt thou cause the trumpet of the jubilee to sound on the tenth day of the seventh month, in the day of atonement shall ye make the trumpet sound throughout all your land. And ye shall hallow the fiftieth year, and proclaim liberty throughout all the land unto all the inhabitants thereof: it shall be a jubilee unto you; and ye shall return every man unto his possession, and ye shall return every man unto his family.”
Every seventh year was a Sabbath year and after seven Sabbath years numbering forty-nine years in all, they were to proclaim the following year, the fiftieth year a jubilee.