Leviticus 25:39

''If one of your countrymen becomes poor among you and sells himself to you, do not make him work as a slave.

(New International Version)

'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.

(New American Standard Bible)

And if thy brother that dwelleth by thee be waxen poor, and be sold unto thee; thou shalt not compel him to serve as a bondservant:

(King James Version)