Leviticus 25:47-51

⁴⁷If a foreigner who is living among you DOU becomes rich, and if one of your fellow Israelis becomes poor and sells himself to that foreigner or to a member of his clan/family,

⁴⁸it is permitted for someone to pay for him to be freed. It is permitted for one of his relatives to pay for him to be released:

⁴⁹An uncle or a cousin or another relative in his clan may pay for him to be released. Or, if he prospers and gets enough money, he is permitted to pay for his own release.

⁵⁰The man who wants to pay for his own release must count the number of years until the next Year of Celebration. The price he pays to the man who bought him will depend on the pay that would be given to a hired worker for that number of years.

⁵¹If there are a lot of years that remain until the Year of Celebration, he must pay for his release a larger amount of the money.