Isaiah 37:30

30“This shall be the sign [of these things] to you [Hezekiah]: you are to eat this year 37:30 Called “second growth,” this ordinarily referred to uncultivated produce that grew during the Sabbath year (when sowing was forbidden) from seed that fell outside the boundaries of the field the preceding year.what grows of itself, and in the second year that which springs from the same, and in the third year you are to sow and harvest, and plant vineyards and eat their fruit.