Leviticus 27:23-25

American Standard Version

²³ then the priest shall reckon unto him the worth of thy estimation unto the year of jubilee: and he shall give thine estimation in that day, as a holy thing unto Jehovah. ²⁴ In the year of jubilee the field shall return unto him of whom it was bought, even to him to whom the possession of the land belongeth. ²⁵ And all thy estimations shall be according to the shekel of the sanctuary: twenty gerahs shall be the shekel.