וְֽאוּלָ֗ם כֻּלָּ֣ם תָּ֭שֻׁבוּ וּבֹ֣אוּ נָ֑א וְלֹֽא־אֶמְצָ֖א בָכֶ֣ם חָכָֽם׃
But as for you all, do ye return, and come now; And I shall not find a wise man among you.
Read kabbalistic (mystical) interpretation of Job 17:10: and classical mystical sources.