Isaiah 52:14 Kabbalah

כַּאֲשֶׁ֨ר שָׁמְמ֤וּ עָלֶ֙יךָ֙ רַבִּ֔ים כֵּן־מִשְׁחַ֥ת מֵאִ֖ישׁ מַרְאֵ֑הוּ וְתֹאֲר֖וֹ מִבְּנֵ֥י אָדָֽם׃

According as many were appalled at thee— So marred was his visage unlike that of a man, And his form unlike that of the sons of men—

Read kabbalistic (mystical) interpretation of Isaiah 52:14: and classical mystical sources.