Leviticus 25:23

19 Then the land will yield its fruit, so that you can eat your fill and dwell in safety in the land.

20 Now you may wonder, ‘What will we eat in the seventh year if we do not sow or gather our produce?’

21 But I will send My blessing upon you in the sixth year, so that the land will yield a crop sufficient for three years.

22 While you are sowing in the eighth year, you will be eating from the previous harvest, until the ninth year’s harvest comes in.

23 The land must not be sold permanently, because it is Mine, and you are but foreigners and residents with Me.

24 Thus for every piece of property you possess, you must provide for the redemption of the land.

25 If your brother becomes impoverished and sells some of his property, his nearest of kin may come and redeem what his brother has sold.

26 Or if a man has no one to redeem it for him, but he prospers and acquires enough to redeem his land,

27 he shall calculate the years since its sale, repay the balance to the man to whom he sold it, and return to his property.

Read all of Leviticus 25