Leviticus 25:5

2 Say to the children of Israel, When you come into the land which I will give you, let the land keep a Sabbath to the Lord.

3 For six years put seed into your land, and for six years give care to your vines and get in the produce of them;

4 But let the seventh year be a Sabbath of rest for the land, a Sabbath to the Lord; do not put seed into your land or have your vines cut.

5 That which comes to growth of itself may not be cut, and the grapes of your uncared-for vines may not be taken off; let it be a year of rest for the land.

6 And the Sabbath of the land will give food for you and your man-servant and your woman-servant and those working for payment, and for those of another country who are living among you;

7 And for your cattle and the beasts on the land; all the natural increase of the land will be for food.

8 And let seven Sabbaths of years be numbered to you, seven times seven years; even the days of seven Sabbaths of years, that is forty-nine years;