יְֽרוּשָׁלִַ֗ם הָרִים֮ סָבִ֪יב לָ֥הּ וַ֭יהוָה סָבִ֣יב לְעַמּ֑וֹ מֵ֝עַתָּ֗ה וְעַד־עוֹלָֽם׃
As the mountains are round about Jerusalem, So the LORD is round about His people, From this time forth and for ever.
Read kabbalistic (mystical) interpretation of Psalms 125:2: and classical mystical sources.