כִּ֤י שָׁכַ֙חַתְּ֙ אֱלֹהֵ֣י יִשְׁעֵ֔ךְ וְצ֥וּר מָעֻזֵּ֖ךְ לֹ֣א זָכָ֑רְתְּ עַל־כֵּ֗ן תִּטְּעִי֙ נִטְעֵ֣י נַעֲמָנִ֔ים וּזְמֹ֥רַת זָ֖ר תִּזְרָעֶֽנּוּ׃
For thou hast forgotten the God of thy salvation, And thou hast not been mindful of the Rock of thy stronghold; Therefore thou didst plant plants of pleasantness, And didst set it with slips of a stranger;
Read kabbalistic (mystical) interpretation of Isaiah 17:10: and classical mystical sources.