Leviticus 25:53

He is to be treated as a man hired from year to year; you must see to it that his owner does not rule over him ruthlessly.

(New International Version)

'Like a man hired year by year he shall be with him; he shall not rule over him with severity in your sight.

(New American Standard Bible)

And as a yearly hired servant shall he be with him: and the other shall not rule with rigour over him in thy sight.

(King James Version)