Leviticus 25:16-17

¹⁶According to the multitude of years thou shalt increase the price thereof, and according to the fewness of years thou shalt diminish the price of it: for according to the number of the years of the fruits doth he sell unto thee.

¹⁷Ye shall not therefore oppress one another; but thou shalt fear thy God: for I am the LORD your God.