Leviticus 25:37-41

You shall not give him your silver at interest, nor your food for profit.

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

‘Now if a countryman of yours becomes so poor with regard to you that he sells himself to you, you shall not subject him to a slave’s service.

He shall be with you as a hired worker, as if he were a foreign resident; he shall serve with you up to the year of jubilee.

He shall then leave you, he and his sons with him, and shall go back to his family, so that he may return to the property of his forefathers.