Leviticus 25:34

32“‘Nevertheless, in the cities of the Levites, the Levites may redeem the houses in the cities of their possession at any time.

33The Levites may redeem the house that was sold, and the city of his possession, and it shall be released in the Jubilee; for the houses of the cities of the Levites are their possession among the children of Israel.

34But the field of the pasture lands of their cities may not be sold, for it is their perpetual possession.

35“‘If your brother has become poor, and his hand can’t support himself among you, then you shall uphold him. He shall live with you like an alien and a temporary resident.

36Take no interest from him or profit; but fear your God, that your brother may live among you.