Leviticus 25:34-39

³⁴However, the fields surrounding their towns must not be sold because they belong to the Levites permanently.

³⁵If any of your people become poor and can't survive, you must help them in the same way you would help a foreigner or a stranger, so that they can go on living in your neighborhood.

³⁶Don't make them pay you any interest or demand more than they borrowed, but respect your God so that they can remain living in your area.

³⁷Don't lend them silver with interest or sell them food at an inflated price.

³⁸Remember, I am the Lord your God who led you out of Egypt to give you the land of Canaan and to be your God.

³⁹If any of your people become poor and have to sell themselves to work for you, don't force them to work as a slave.