Leviticus 25:34-39

³⁴And the lands set apart for their cities shall not be sold, because this is their perpetual possession.

³⁵And if thy brother who is with thee become poor, and he fail in resources with thee, thou shalt help him as a stranger and a sojourner, and thy brother shall live with thee.

³⁶Thou shalt not receive from him interest, nor increase: and thou shalt fear thy God: I am the Lord: and thy brother shall live with thee.

³⁷Thou shalt not lend thy money to him at interest, and thou shalt not lend thy meat to him to be returned with increase.

³⁸I am the Lord your God, who brought you out of the land of Egypt, to give you the land of Canaan, so as to be your God.

³⁹And if thy brother by thee be lowered, and be sold to thee, he shall not serve thee with the servitude of a slave.