Leviticus 25:46
"And ye shall take them as an inheritance for your children after you, to inherit them for a possession; they shall be your bondmen for ever: but over your brethren the children of Israel, ye shall not rule one over another with rigour."
Cross References (ranked by relevance)
Isaiah 14:2
And the people shall take them, and bring them to their place: and the house of Israel shall possess them in the land of the LORD for servants and handmaids: and they shall take them captives, whose captives they were; and they shall rule over their oppressors.
Leviticus 25:43
Thou shalt not rule over him with rigour; but shalt fear thy God.