תֵּהָפֵ֣ךְ לְאַכְזָ֣ר לִ֑י בְּעֹ֖צֶם יָדְךָ֣ תִשְׂטְמֵֽנִי׃
Thou art turned to be cruel to me; With the might of Thy hand Thou hatest me.
Read Kabbalistic (mystical) interpretations of Job 30:21: Zohar and classical Jewish mystical sources, free online.