Leviticus 25:22-24

And ye shall sowe the eight yeere, and eate of the olde fruite vntill the ninth yeere: vntill the fruite thereof come, ye shall eate the olde.

Also the lande shall not be solde to be cut off from the familie: for the land is mine, and ye be but strangers and soiourners with me.

Therefore in all the land of your possession ye shall graunt a redemption for the lande.