Leviticus

²⁹And if a man sell a dwelling house in a walled city, then he may redeem it within a whole year after it is sold; for a full year shall he have the right of redemption. ³⁰And if it be not redeemed within the space of a full year, then the house that is in the walled city shall be made sure in perpetuity to him that bought it, throughout his generations: it shall not go out in the jubile. ³¹But the houses of the villages which have no wall round about them shall be reckoned with the fields of the country: they may be redeemed, and they shall go out in the jubile. ³²Nevertheless the cities of the Levites, the houses of the cities of their possession, may the Levites redeem at any time. ³³And if one of the Levites redeem, then the house that was sold, and the city of his possession, shall go out in the jubile: for the houses of the cities of the Levites are their possession among the children of Israel. ³⁴But the field of the suburbs of their cities may not be sold; for it is their perpetual possession. ³⁵And if thy brother be waxen poor, and his hand fail with thee; then thou shalt uphold him: as a stranger and a sojourner shall he live with thee.