כִּשְׂכִ֥יר שָׁנָ֛ה בְּשָׁנָ֖ה יִהְיֶ֣ה עִמּ֑וֹ לֹֽא־יִרְדֶּ֥נּֽוּ בְּפֶ֖רֶךְ לְעֵינֶֽיךָ׃
As a servant hired year by year shall he be with him; he shall not rule with rigour over him in thy sight.
Read kabbalistic (mystical) interpretation of Leviticus 25:53: and classical mystical sources.