Leviticus 25:15-17 Modern English Version (MEV)
15 According to the number of years after the Jubilee you shall pay your neighbor, and according to the number of years of the crops he shall sell to you. 16 According to the increase of years you shall increase the price, and according to the decrease of years you shall diminish the price of it. For he shall sell to you according to the number of years of crops. 17 You shall not therefore oppress one another, but you shall fear your God. For I am the Lord your God.