Leviticus 25:13

10 And let this fiftieth year be kept holy, and say publicly that everyone in the land is free from debt: it is the Jubilee, and every man may go back to his heritage and to his family.

11 Let this fiftieth year be the Jubilee: no seed may be planted, and that which comes to growth of itself may not be cut, and the grapes may not be taken from the uncared-for vines.

12 For it is the Jubilee, and it is holy to you; your food will be the natural increase of the field.

13 In this year of Jubilee, let every man go back to his heritage.

14 And in the business of trading goods for money, do no wrong to one another.

15 Let your exchange of goods with your neighbours have relation to the number of years after the year of Jubilee, and the number of times the earth has given her produce.

16 If the number of years is great, the price will be increased, and if the number of years is small, the price will be less, for it is the produce of a certain number of years which the man is giving you.