מַה־נָּאו֨וּ עַל־הֶהָרִ֜ים רַגְלֵ֣י מְבַשֵּׂ֗ר מַשְׁמִ֧יעַ שָׁל֛וֹם מְבַשֵּׂ֥ר ט֖וֹב מַשְׁמִ֣יעַ יְשׁוּעָ֑ה אֹמֵ֥ר לְצִיּ֖וֹן מָלַ֥ךְ אֱלֹהָֽיִךְ׃
How beautiful upon the mountains Are the feet of the messenger of good tidings, That announceth peace, the harbinger of good tidings, That announceth salvation; That saith unto Zion: ‘Thy God reigneth! ’
Read kabbalistic (mystical) interpretation of Isaiah 52:7: and classical mystical sources.