כֵּ֥ן הָיוּ־לָ֖ךְ אֲשֶׁ֣ר יָגָ֑עַתְּ סֹחֲרַ֣יִךְ מִנְּעוּרַ֗יִךְ אִ֤ישׁ לְעֶבְרוֹ֙ תָּע֔וּ אֵ֖ין מוֹשִׁיעֵֽךְ׃ (ס)
Thus shall they be unto thee With whom thou hast laboured; They that have trafficked with thee from thy youth Shall wander every one to his quarter; There shall be none to save thee.
Read midrashic interpretation of Isaiah 47:15: and classical rabbinic exegesis.