Leviticus 25:18

15 by the number of years after the jubilee thou dost buy from thy fellow; by the number of the years of increase he doth sell to thee;

16 according to the multitude of the years thou dost multiply its price, and according to the fewness of the years thou dost diminish its price; for a number of increases he is selling to thee;

17 and ye do not oppress one another, and thou hast been afraid of thy God; for I [am] Jehovah your God.

18 `And ye have done My statutes, and My judgments ye keep, and have done them, and ye have dwelt on the land confidently,

19 and the land hath given its fruit, and ye have eaten to satiety, and have dwelt confidently on it.

20 `And when ye say, What do we eat in the seventh year, lo, we do not sow, nor gather our increase?

21 then I have commanded My blessing on you in the sixth year, and it hath made the increase for three years;