מַה־לַּעֲשׂ֥וֹת עוֹד֙ לְכַרְמִ֔י וְלֹ֥א עָשִׂ֖יתִי בּ֑וֹ מַדּ֧וּעַ קִוֵּ֛יתִי לַעֲשׂ֥וֹת עֲנָבִ֖ים וַיַּ֥עַשׂ בְּאֻשִֽׁים׃
What could have been done more to my vineyard, That I have not done in it? Wherefore, when I looked that it should bring forth grapes, Brought it forth wild grapes?
Read kabbalistic (mystical) interpretation of Isaiah 5:4: and classical mystical sources.