וְ֭נִמְצָא יְשַׁלֵּ֣ם שִׁבְעָתָ֑יִם אֶת־כָּל־ה֖וֹן בֵּית֣וֹ יִתֵּֽן׃
But if he be found, he must restore sevenfold, He must give all the substance of his house.
Read kabbalistic (mystical) interpretation of Proverbs 6:31: and classical mystical sources.