Leviticus 25:22-24

²²And ye shall sow the eighth year, and eat yet of old fruit until the ninth year; until her fruits come in ye shall eat of the old store.

²³The land shall not be sold for ever: for the land is mine; for ye are strangers and sojourners with me.

²⁴And in all the land of your possession ye shall grant a redemption for the land.