Leviticus 25:4
But in the seventh year there shall be a Sabbath of complete rest for the land--a Sabbath to the LORD. You are not to sow your field or prune your vineyard.

Leviticus 25:6
Whatever the land yields during the Sabbath year shall be food for you--for yourself, your manservant and maidservant, the hired hand or foreigner who stays with you,

Leviticus 25:11
The fiftieth year will be a jubilee for you; you are not to sow or reap what grows by itself or harvest the untended vines.

Isaiah 37:30
And this will be a sign to you, O Hezekiah: This year you will eat what grows on its own, and in the second year what springs from the same. But in the third year you will sow and reap; you will plant vineyards and eat their fruit.